diff --git a/gtk/resources/theme/Adwaita/_common.scss b/gtk/resources/theme/Adwaita/_common.scss
index 171f54c596..35c2ac11de 100644
--- a/gtk/resources/theme/Adwaita/_common.scss
+++ b/gtk/resources/theme/Adwaita/_common.scss
@@ -287,10 +287,10 @@
   }
 
   .primary-toolbar & { icon-shadow: none; } // tango icons don't need added shadows
-  .separator {
-    -GtkWidget-wide-separators: true;
-    -GtkWidget-horizontal-separator: 0;
-   }
+//  .separator {
+//    -GtkWidget-wide-separators: true;
+//    -GtkWidget-horizontal-separator: 0;
+//   }
   .linked &, .linked &:backdrop {
     @extend %linked_buttons;
   }
diff --git a/gtk/resources/theme/Adwaita/gtk-contained-dark.css b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
index fe9032fe32..dc1e65a04a 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
@@ -419,9 +419,6 @@
     border-width: 1px; }
   .primary-toolbar .button {
     icon-shadow: none; }
-  .button .separator {
-    -GtkWidget-wide-separators: true;
-    -GtkWidget-horizontal-separator: 0; }
 
 .osd .button, .osd .button:hover, .osd .button:active, .osd .button:insensitive, .osd .button:backdrop, .inline-toolbar .button, .inline-toolbar .button:backdrop, .linked .button, .linked .button:backdrop {
   border-radius: 0;
diff --git a/gtk/resources/theme/Adwaita/gtk-contained.css b/gtk/resources/theme/Adwaita/gtk-contained.css
index 61d7fa2c86..8df98e0e5c 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained.css
@@ -419,9 +419,6 @@
     border-width: 1px; }
   .primary-toolbar .button {
     icon-shadow: none; }
-  .button .separator {
-    -GtkWidget-wide-separators: true;
-    -GtkWidget-horizontal-separator: 0; }
 
 .osd .button, .osd .button:hover, .osd .button:active, .osd .button:insensitive, .osd .button:backdrop, .inline-toolbar .button, .inline-toolbar .button:backdrop, .linked .button, .linked .button:backdrop {
   border-radius: 0;