sidebar: Fix gcc warning

diff --git a/gtk/gtksidebar.c b/gtk/gtksidebar.c
index 437f69281fe4d1641ca79a2414dc2ba9a0fc8e8e..7e9fe6f35c9fcb7482f52b6831654a0f1c1dc81c 100644 (file)
--- a/gtk/gtksidebar.c
+++ b/gtk/gtksidebar.c
@@ -512,7 +512,7 @@ gtk_sidebar_get_stack (GtkSidebar *sidebar)
 {
   GtkSidebarPrivate *priv;
 
-  g_return_if_fail (GTK_IS_SIDEBAR (sidebar));
+  g_return_val_if_fail (GTK_IS_SIDEBAR (sidebar), NULL);
 
   priv = gtk_sidebar_get_instance_private (sidebar);