diff --git a/gobject/tests/signals.c b/gobject/tests/signals.c
index ac0ce5102..55d5207ca 100644
--- a/gobject/tests/signals.c
+++ b/gobject/tests/signals.c
@@ -1148,7 +1148,7 @@ test_introspection (void)
   guint *ids;
   guint n_ids;
   const gchar *name;
-  gint i;
+  guint i;
   const gchar *names[] = {
     "simple",
     "simple-detailed",