diff --git a/gtk/gtk-win32-base.css b/gtk/gtk-win32-base.css
index bc0ea6e13c..1fda1a26d8 100644
--- a/gtk/gtk-win32-base.css
+++ b/gtk/gtk-win32-base.css
@@ -821,4 +821,13 @@ GtkColorSwatch:prelight {
 .separator,
 .separator:prelight {
     color: shade (@bg_color, 0.6);
+}
+
+.pane-separator {
+    background-image: -gtk-win32-theme-part(rebar, 1 1);
+/* Use this when background-position is supported
+    background-size: 20px 20px;
+    background-repeat: no-repeat;
+    background-position: center;
+*/
 }
\ No newline at end of file