diff --git a/gtk-3.20/scss/widgets/_sidebar.scss b/gtk-3.20/scss/widgets/_sidebar.scss
index fb92fda..106ade8 100644
--- a/gtk-3.20/scss/widgets/_sidebar.scss
+++ b/gtk-3.20/scss/widgets/_sidebar.scss
@@ -210,5 +210,9 @@
                 background-position: bottom, top;
             }
         }
+
+        &.titlebar > separator {
+            background-image: image(shade($titlebar_bg_color, ($contrast + .1)));
+        }
     }
 }