diff --git a/gobject/gobject.c b/gobject/gobject.c
index a3a32be9f..df67abdb6 100644
--- a/gobject/gobject.c
+++ b/gobject/gobject.c
@@ -749,7 +749,7 @@ g_object_class_install_properties (GObjectClass  *oclass,
                                    GParamSpec   **pspecs)
 {
   GType oclass_type, parent_type;
-  gint i;
+  guint i;
 
   g_return_if_fail (G_IS_OBJECT_CLASS (oclass));
   g_return_if_fail (n_pspecs > 1);