diff --git a/gio/tests/gdbus-example-peer.c b/gio/tests/gdbus-example-peer.c
index 9d5de32a6..4fa1df9a5 100755
--- a/gio/tests/gdbus-example-peer.c
+++ b/gio/tests/gdbus-example-peer.c
@@ -117,6 +117,7 @@ static const GDBusInterfaceVTable interface_vtable =
   handle_method_call,
   NULL,
   NULL,
+  { 0 }
 };
 
 /* ---------------------------------------------------------------------------------------------------- */