diff --git a/gst-libs/gst/rtsp/gstrtspextension.h b/gst-libs/gst/rtsp/gstrtspextension.h
index a697c90c28..e2995f3d28 100644
--- a/gst-libs/gst/rtsp/gstrtspextension.h
+++ b/gst-libs/gst/rtsp/gstrtspextension.h
@@ -34,9 +34,9 @@ G_BEGIN_DECLS
 #define GST_TYPE_RTSP_EXTENSION \
   (gst_rtsp_extension_get_type ())
 #define GST_RTSP_EXTENSION(obj) \
-  (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_RTSP_EXTENSION, GstRTSPExtension))
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_RTSP_EXTENSION, GstRTSPExtension))
 #define GST_IS_RTSP_EXTENSION(obj) \
-  (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_RTSP_EXTENSION))
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_RTSP_EXTENSION))
 #define GST_RTSP_EXTENSION_GET_IFACE(inst) \
   (G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_RTSP_EXTENSION, GstRTSPExtensionInterface))