diff --git a/trunk/src/app/srs_app_rtc_conn.cpp b/trunk/src/app/srs_app_rtc_conn.cpp
index a10e94591..a2cac352c 100644
--- a/trunk/src/app/srs_app_rtc_conn.cpp
+++ b/trunk/src/app/srs_app_rtc_conn.cpp
@@ -77,6 +77,9 @@ extern SrsPps* _srs_pps_snack4;
 extern SrsPps* _srs_pps_rnack;
 extern SrsPps* _srs_pps_rnack2;
 
+extern SrsPps* _srs_pps_pub;
+extern SrsPps* _srs_pps_conn;
+
 ISrsRtcTransport::ISrsRtcTransport()
 {
 }