diff --git a/gio/tests/gdbus-test-codegen.c b/gio/tests/gdbus-test-codegen.c
index fe192fa9e..24c1cae7f 100644
--- a/gio/tests/gdbus-test-codegen.c
+++ b/gio/tests/gdbus-test-codegen.c
@@ -703,8 +703,8 @@ check_bar_proxy (FooBar    *proxy,
   ClientData *data;
   guchar val_y;
   gboolean val_b;
-  gint16 val_n;
-  guint16 val_q;
+  gint val_n;
+  guint val_q;
   gint val_i;
   guint val_u;
   gint64 val_x;