diff --git a/src/dialogs/settings/popup.c b/src/dialogs/settings/popup.c
index c35baab..f47ef68 100644
--- a/src/dialogs/settings/popup.c
+++ b/src/dialogs/settings/popup.c
@@ -32,7 +32,7 @@
 			g_object_ref_sink(settings);
 		}
 		g_object_unref(settings);
-		return;
+		return NULL;
 	}
 
 	GtkWidget * dialog = v3270_settings_dialog_new();
--
libgit2 0.21.2