diff --git a/gst/gstplugin.c b/gst/gstplugin.c
index 625f2dabd4..597cf34d11 100644
--- a/gst/gstplugin.c
+++ b/gst/gstplugin.c
@@ -67,7 +67,7 @@ static GstPlugin *	gst_plugin_register_func 	(GstPlugin *plugin,
 static GstPlugin *
 gst_plugin_copy (GstPlugin *plugin)
 {
-  return plugin;
+  return g_memdup(plugin, sizeof(*plugin));
 }
 
 GType
diff --git a/gst/gstregistry.c b/gst/gstregistry.c
index df0f856279..3632a11d00 100644
--- a/gst/gstregistry.c
+++ b/gst/gstregistry.c
@@ -85,7 +85,7 @@ gst_registry_class_init (GstRegistryClass *klass)
     g_signal_new ("plugin_added", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
                   G_STRUCT_OFFSET (GstRegistryClass, plugin_added), NULL, NULL,
                   gst_marshal_VOID__POINTER, G_TYPE_NONE, 1,
-                  G_TYPE_POINTER);
+                  GST_TYPE_PLUGIN);
 
   gobject_class->dispose = NULL;
 }