diff --git a/plugins/provider/sip/calls-sip-media-manager.c b/plugins/provider/sip/calls-sip-media-manager.c
index e84db6b..e305328 100644
--- a/plugins/provider/sip/calls-sip-media-manager.c
+++ b/plugins/provider/sip/calls-sip-media-manager.c
@@ -121,8 +121,8 @@ calls_sip_media_manager_finalize (GObject *object)
 {
   CallsSipMediaManager *self = CALLS_SIP_MEDIA_MANAGER (object);
 
-  g_list_free (self->preferred_codecs);
-  g_object_unref (self->pipelines);
+  g_clear_list (&self->preferred_codecs, NULL);
+  g_clear_object (&self->pipelines);
 
   G_OBJECT_CLASS (calls_sip_media_manager_parent_class)->finalize (object);
 }