diff --git a/gtk-3.0/gtk-widgets.css b/gtk-3.0/gtk-widgets.css
index ec51274..d65f4c5 100644
--- a/gtk-3.0/gtk-widgets.css
+++ b/gtk-3.0/gtk-widgets.css
@@ -2244,7 +2244,7 @@ GtkColorButton.button {
  ************/
 GtkTreeView {
     -GtkTreeView-vertical-separator: 0;
-    -GtkWidget-focus-line-width: 0;
+    -GtkWidget-focus-line-width: 1;
     -GtkWidget-focus-padding: 1;
 }