diff --git a/ulock.c b/ulock.c
index 9ac8ac8..88c0d46 100644
--- a/ulock.c
+++ b/ulock.c
@@ -245,7 +245,7 @@ static void wait_for_selection(void) {
 }
 
 static void create_lock_window(void) {
-	window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+	window = gtk_window_new(GTK_WINDOW_POPUP);
 
 	gtk_widget_realize(window);
 	gdk_window_add_filter(NULL, (GdkFilterFunc)xevent_filter, NULL);