diff --git a/src/help-dialogs.c b/src/help-dialogs.c
index d12b802..121d111 100644
--- a/src/help-dialogs.c
+++ b/src/help-dialogs.c
@@ -152,7 +152,7 @@ LabelWithOnlineHelp* GuiCreateLabelWithOnlineHelp(char *title, char *ascii_text)
    gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, FALSE, 0);
    g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(close_cb), lwoh);
 
-   gtk_box_pack_end(GTK_BOX(vbox), gtk_hseparator_new(), FALSE, FALSE, 6);
+   gtk_box_pack_end(GTK_BOX(vbox), gtk_separator_new(GTK_ORIENTATION_HORIZONTAL), FALSE, FALSE, 6);
 
    /*** Put link label into an event box */
 
@@ -325,7 +325,7 @@ void GuiAddHelpListItem(LabelWithOnlineHelp *lwoh, char *format, ...)
 void GuiAddHelpWidget(LabelWithOnlineHelp *lwoh, GtkWidget *widget)
 {  
    gtk_box_pack_start(GTK_BOX(lwoh->vbox), widget, FALSE, FALSE, 10);
-   gtk_box_pack_start(GTK_BOX(lwoh->vbox), gtk_hseparator_new(), FALSE, FALSE, 10);
+   gtk_box_pack_start(GTK_BOX(lwoh->vbox), gtk_separator_new(GTK_ORIENTATION_HORIZONTAL), FALSE, FALSE, 10);
 }
 
 /***
@@ -561,7 +561,7 @@ GtkWidget* GuiShowTextfile(char *title, char *explanation, char *file,
    gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0); 
    gtk_box_pack_start(GTK_BOX(vbox), lab, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(vbox), sep, FALSE, FALSE, 0);
 
    scroll_win = gtk_scrolled_window_new(NULL, NULL);
@@ -747,7 +747,7 @@ void GuiAboutDialog()
 		"Copyright 2019-2021 The dvdisaster development team."
    ));
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(vbox), sep, FALSE, FALSE, 10);
 
 
diff --git a/src/main-window.c b/src/main-window.c
index 6917ebb..401088a 100644
--- a/src/main-window.c
+++ b/src/main-window.c
@@ -450,7 +450,7 @@ void GuiCreateMainWindow(int *argc, char ***argv)
     wid = GuiCreateMenuBar(outer_box);
     gtk_box_pack_start(GTK_BOX(outer_box), wid, FALSE, FALSE, 0);
 
-    sep = gtk_hseparator_new();
+    sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
     gtk_box_pack_start(GTK_BOX(outer_box), sep, FALSE, FALSE, 0);
 
     wid = GuiCreateToolBar(outer_box);
@@ -458,7 +458,7 @@ void GuiCreateMainWindow(int *argc, char ***argv)
 
     /* Middle part */
 
-    sep = gtk_hseparator_new();
+    sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
     gtk_box_pack_start(GTK_BOX(outer_box), sep, FALSE, FALSE, 0);
 
     middle_box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
@@ -474,7 +474,7 @@ void GuiCreateMainWindow(int *argc, char ***argv)
     wid = create_action_bar((GTK_NOTEBOOK(Closure->notebook)));
     gtk_box_pack_end(GTK_BOX(middle_box), wid, FALSE, FALSE, 3);
 
-    sep = gtk_vseparator_new();
+    sep = gtk_separator_new(GTK_ORIENTATION_VERTICAL);
     gtk_box_pack_end(GTK_BOX(middle_box), sep, FALSE, FALSE, 0);
 
     /* Status bar enclosure */
@@ -482,7 +482,7 @@ void GuiCreateMainWindow(int *argc, char ***argv)
     status_box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
     gtk_box_pack_end(GTK_BOX(outer_box), status_box, FALSE, FALSE, 0);
 
-    sep = gtk_hseparator_new();
+    sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
     gtk_box_pack_end(GTK_BOX(outer_box), sep, FALSE, FALSE, 0);
 
     /* Status bar contents. */
diff --git a/src/medium-info.c b/src/medium-info.c
index 6308b93..c0d30da 100644
--- a/src/medium-info.c
+++ b/src/medium-info.c
@@ -348,7 +348,7 @@ void GuiCreateMediumInfoWindow()
   gtk_misc_set_alignment(GTK_MISC(lab), 0.0, 0.0); 
   gtk_box_pack_start(GTK_BOX(vbox), lab, FALSE, FALSE, 0);
 
-  sep = gtk_hseparator_new();
+  sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
   gtk_box_pack_start(GTK_BOX(vbox), sep, FALSE, FALSE, 0);
 
   gtk_box_pack_start(GTK_BOX(vbox), gtk_label_new(" "), FALSE, FALSE, 0);
diff --git a/src/menubar.c b/src/menubar.c
index e0bb79e..c8fbc84 100644
--- a/src/menubar.c
+++ b/src/menubar.c
@@ -475,7 +475,7 @@ GtkWidget *GuiCreateToolBar(GtkWidget *parent)
    space = gtk_label_new(NULL);
    gtk_box_pack_start(GTK_BOX(box), space, FALSE, FALSE, 1);
 
-   sep = gtk_vseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_VERTICAL);
    gtk_box_pack_start(GTK_BOX(box), sep, FALSE, FALSE, 3);
 
    /*** Image file selection */
@@ -498,7 +498,7 @@ GtkWidget *GuiCreateToolBar(GtkWidget *parent)
    space = gtk_label_new(NULL);
    gtk_box_pack_start(GTK_BOX(box), space, FALSE, FALSE, 5);
 
-   sep = gtk_vseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_VERTICAL);
    gtk_box_pack_start(GTK_BOX(box), sep, FALSE, FALSE, 3);
    GuiAttachTooltip(button, _("tooltip|Image file selection"),
 		    _("Selects a new image file."));
@@ -526,7 +526,7 @@ GtkWidget *GuiCreateToolBar(GtkWidget *parent)
    space = gtk_label_new(NULL);
    gtk_box_pack_start(GTK_BOX(box), space, FALSE, FALSE, 5);
 
-   sep = gtk_vseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_VERTICAL);
    gtk_box_pack_start(GTK_BOX(box), sep, FALSE, FALSE, 3);
    GuiAttachTooltip(button,
 		    _("tooltip|Error correction file selection"),
diff --git a/src/read-adaptive-window.c b/src/read-adaptive-window.c
index cd263c7..004f1d1 100644
--- a/src/read-adaptive-window.c
+++ b/src/read-adaptive-window.c
@@ -349,10 +349,10 @@ void GuiCreateAdaptiveReadWindow(GtkWidget *parent)
    gtk_label_set_ellipsize(GTK_LABEL(Closure->readAdaptiveHeadline), PANGO_ELLIPSIZE_END);
    gtk_box_pack_start(GTK_BOX(parent), Closure->readAdaptiveHeadline, FALSE, FALSE, 3);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
    d_area = Closure->readAdaptiveDrawingArea = gtk_drawing_area_new();
diff --git a/src/read-linear-window.c b/src/read-linear-window.c
index ec569f3..8f286f0 100644
--- a/src/read-linear-window.c
+++ b/src/read-linear-window.c
@@ -359,10 +359,10 @@ void GuiCreateLinearReadWindow(GtkWidget *parent)
    gtk_label_set_ellipsize(GTK_LABEL(Closure->readLinearHeadline), PANGO_ELLIPSIZE_END);
    gtk_box_pack_start(GTK_BOX(parent), Closure->readLinearHeadline, FALSE, FALSE, 3);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
    hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
diff --git a/src/rs01-verify.c b/src/rs01-verify.c
index 0db1f15..e43820b 100644
--- a/src/rs01-verify.c
+++ b/src/rs01-verify.c
@@ -181,10 +181,10 @@ void CreateRS01VerifyWindow(Method *self, GtkWidget *parent)
    gtk_misc_set_padding(GTK_MISC(wl->cmpHeadline), 5, 0);
    gtk_box_pack_start(GTK_BOX(parent), wl->cmpHeadline, FALSE, FALSE, 3);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
    table = gtk_table_new(2, 2, FALSE);
diff --git a/src/rs01-window.c b/src/rs01-window.c
index 87a040e..f8f1555 100644
--- a/src/rs01-window.c
+++ b/src/rs01-window.c
@@ -114,10 +114,10 @@ void CreateRS01EWindow(Method *method, GtkWidget *parent)
    gtk_misc_set_padding(GTK_MISC(wl->encHeadline), 5, 0);
    gtk_box_pack_start(GTK_BOX(parent), wl->encHeadline, FALSE, FALSE, 3);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
    table = gtk_table_new(2, 2, FALSE);
@@ -321,10 +321,10 @@ void CreateRS01FWindow(Method *method, GtkWidget *parent)
    gtk_misc_set_padding(GTK_MISC(wl->fixHeadline), 5, 0);
    gtk_box_pack_start(GTK_BOX(parent), wl->fixHeadline, FALSE, FALSE, 3);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
    d_area = wl->fixDrawingArea = gtk_drawing_area_new();
diff --git a/src/rs02-verify.c b/src/rs02-verify.c
index d6fe57b..ac13ebb 100644
--- a/src/rs02-verify.c
+++ b/src/rs02-verify.c
@@ -171,10 +171,10 @@ void CreateRS02VerifyWindow(Method *self, GtkWidget *parent)
    gtk_misc_set_padding(GTK_MISC(wl->cmpHeadline), 5, 0);
    gtk_box_pack_start(GTK_BOX(parent), wl->cmpHeadline, FALSE, FALSE, 3);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
    table = gtk_table_new(2, 2, FALSE);
diff --git a/src/rs02-window.c b/src/rs02-window.c
index a81ca5c..df9f752 100644
--- a/src/rs02-window.c
+++ b/src/rs02-window.c
@@ -63,10 +63,10 @@ void CreateRS02EncWindow(Method *method, GtkWidget *parent)
    gtk_misc_set_padding(GTK_MISC(wl->encHeadline), 5, 0);
    gtk_box_pack_start(GTK_BOX(parent), wl->encHeadline, FALSE, FALSE, 3);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
    table = gtk_table_new(2, 2, FALSE);
@@ -263,10 +263,10 @@ void CreateRS02FixWindow(Method *method, GtkWidget *parent)
    gtk_misc_set_padding(GTK_MISC(wl->fixHeadline), 5, 0);
    gtk_box_pack_start(GTK_BOX(parent), wl->fixHeadline, FALSE, FALSE, 3);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
    d_area = wl->fixDrawingArea = gtk_drawing_area_new();
diff --git a/src/rs03-verify.c b/src/rs03-verify.c
index bfcbe23..b1dd158 100644
--- a/src/rs03-verify.c
+++ b/src/rs03-verify.c
@@ -182,10 +182,10 @@ void CreateRS03VerifyWindow(Method *self, GtkWidget *parent)
    gtk_misc_set_padding(GTK_MISC(wl->cmpHeadline), 5, 0);
    gtk_box_pack_start(GTK_BOX(parent), wl->cmpHeadline, FALSE, FALSE, 3);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
    table = gtk_table_new(2, 2, FALSE);
diff --git a/src/rs03-window.c b/src/rs03-window.c
index 313c96a..5dabfe5 100644
--- a/src/rs03-window.c
+++ b/src/rs03-window.c
@@ -67,10 +67,10 @@ void CreateRS03EncWindow(Method *method, GtkWidget *parent)
    gtk_misc_set_padding(GTK_MISC(wl->encHeadline), 5, 0);
    gtk_box_pack_start(GTK_BOX(parent), wl->encHeadline, FALSE, FALSE, 3);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
    table = gtk_table_new(2, 5, FALSE);
@@ -294,10 +294,10 @@ void CreateRS03FixWindow(Method *method, GtkWidget *parent)
    gtk_misc_set_padding(GTK_MISC(wl->fixHeadline), 5, 0);
    gtk_box_pack_start(GTK_BOX(parent), wl->fixHeadline, FALSE, FALSE, 3);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
-   sep = gtk_hseparator_new();
+   sep = gtk_separator_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_pack_start(GTK_BOX(parent), sep, FALSE, FALSE, 0);
 
    d_area = wl->fixDrawingArea = gtk_drawing_area_new();
diff --git a/src/welcome-window.c b/src/welcome-window.c
index c88648e..6ea1812 100644
--- a/src/welcome-window.c
+++ b/src/welcome-window.c
@@ -87,7 +87,7 @@ void GuiCreateWelcomePage(GtkNotebook *notebook)
       "\n"
       "Please refer to the <i>Help &gt; Change log</i> menu for all the details."), "https://github.com/speed47/dvdisaster");
 
-   gtk_box_pack_start(GTK_BOX(box), gtk_hseparator_new(), FALSE, FALSE, 10);
+   gtk_box_pack_start(GTK_BOX(box), gtk_separator_new(GTK_ORIENTATION_HORIZONTAL), FALSE, FALSE, 10);
 
    button = gtk_check_button_new_with_label(_utf("Show this message again"));
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), Closure->welcomeMessage);