diff --git a/build/win32native/ortp.def b/build/win32native/ortp.def
index 4b418e0299b730a4a69db86a99906c45dbe88b7f..32076b64cb3f3926bcd3432ec2872749ef11fe72 100755
--- a/build/win32native/ortp.def
+++ b/build/win32native/ortp.def
@@ -32,6 +32,7 @@ EXPORTS
 	rtp_session_set_profile
 	rtp_session_get_profile
 	rtp_session_set_data
+	rtp_session_set_ssrc_changed_threshold
 
 	rtp_session_signal_connect
 	rtp_session_signal_disconnect_by_callback
diff --git a/build/wince/ortp.def b/build/wince/ortp.def
index e7e4c7ea6fd8e57a5573858c6c637dbb27c70c61..1cbcc3eb06724b9f8021d2effbdf461ccde5deca 100644
--- a/build/wince/ortp.def
+++ b/build/wince/ortp.def
@@ -32,6 +32,7 @@ EXPORTS
 	rtp_session_set_profile
 	rtp_session_get_profile
 	rtp_session_set_data
+	rtp_session_set_ssrc_changed_threshold
 
 	rtp_session_signal_connect
 	rtp_session_signal_disconnect_by_callback