diff --git a/gtk/gtk-default.css b/gtk/gtk-default.css
index 113811f85f..e182c6e0b4 100644
--- a/gtk/gtk-default.css
+++ b/gtk/gtk-default.css
@@ -21,7 +21,6 @@
   color: @fg_color;
   border-color: shade (@bg_color, 0.6);
   padding: 2;
-  border-width: 0;
 }
 
 GtkWindow, .button, .slider {