diff --git a/gobject/gobject.c b/gobject/gobject.c
index c6fef8282..518285de0 100644
--- a/gobject/gobject.c
+++ b/gobject/gobject.c
@@ -4859,7 +4859,7 @@ g_object_compat_control (gsize           what,
     {
       gpointer *pp;
     case 1:     /* floating base type */
-      return G_TYPE_INITIALLY_UNOWNED;
+      return (gsize) G_TYPE_INITIALLY_UNOWNED;
     case 2:     /* FIXME: remove this once GLib/Gtk+ break ABI again */
       floating_flag_handler = (guint(*)(GObject*,gint)) data;
       return 1;
diff --git a/gobject/gparam.c b/gobject/gparam.c
index 00d8b7742..9af9e9b33 100644
--- a/gobject/gparam.c
+++ b/gobject/gparam.c
@@ -955,7 +955,7 @@ param_spec_pool_hash (gconstpointer key_spec)
 {
   const GParamSpec *key = key_spec;
   const gchar *p;
-  guint h = key->owner_type;
+  guint h = (guint) key->owner_type;
 
   for (p = key->name; *p; p++)
     h = (h << 5) - h + *p;