diff --git a/gtk/gtkmenushell.c b/gtk/gtkmenushell.c
index 494aff5402..69f1568d97 100644
--- a/gtk/gtkmenushell.c
+++ b/gtk/gtkmenushell.c
@@ -727,7 +727,7 @@ gtk_menu_shell_event (GtkWidget *widget,
       if (priv->active)
         {
           GtkWidget *menu_item;
-          gint button = priv->button;
+          guint button = priv->button;
 
           priv->button = 0;