diff --git a/win32/common/libgstrtp.def b/win32/common/libgstrtp.def
index baa111efa6..e0618e316c 100644
--- a/win32/common/libgstrtp.def
+++ b/win32/common/libgstrtp.def
@@ -117,5 +117,9 @@ EXPORTS
 	gst_rtp_buffer_set_timestamp
 	gst_rtp_buffer_set_version
 	gst_rtp_buffer_unmap
+	gst_rtp_hdrext_get_ntp_56
+	gst_rtp_hdrext_get_ntp_64
+	gst_rtp_hdrext_set_ntp_56
+	gst_rtp_hdrext_set_ntp_64
 	gst_rtp_payload_info_for_name
 	gst_rtp_payload_info_for_pt