diff --git a/gtk/resources/theme/gtk-win32-base.css b/gtk/resources/theme/gtk-win32-base.css
index 951bd26b0a..a7e2ca692f 100644
--- a/gtk/resources/theme/gtk-win32-base.css
+++ b/gtk/resources/theme/gtk-win32-base.css
@@ -136,7 +136,6 @@ GtkAssistant .sidebar .highlight {
     border-width: 0;
     -GtkWidget-focus-line-width: 1;
     -GtkWidget-focus-padding: 3;
-    -GtkButton-interior-focus: true;
     -GtkButton-default-border: 0px;
     padding: 3px;
 }