--- a/widget/gtk/gtk3drawing.cpp
+++ b/widget/gtk/gtk3drawing.cpp
@@ -2251,18 +2251,17 @@ moz_gtk_get_widget_border(WidgetNodeType
                                               left, top, right, bottom);
 
             return MOZ_GTK_SUCCESS;
         }
     case MOZ_GTK_HEADER_BAR:
     case MOZ_GTK_HEADER_BAR_MAXIMIZED:
         {
             style = GetStyleContext(widget);
-            moz_gtk_add_style_border(style, left, top, right, bottom);
-            moz_gtk_add_style_padding(style, left, top, right, bottom);
+            moz_gtk_add_border_padding(style, left, top, right, bottom);
             return MOZ_GTK_SUCCESS;
         }
     case MOZ_GTK_HEADER_BAR_BUTTON_CLOSE:
     case MOZ_GTK_HEADER_BAR_BUTTON_MINIMIZE:
     case MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE:
         {
             style = GetStyleContext(widget);
             moz_gtk_add_margin_border_padding(style, left, top, right, bottom);