diff --git a/trunk/src/app/srs_app_rtmp_conn.cpp b/trunk/src/app/srs_app_rtmp_conn.cpp
index 5542747adf..ffddf51ae2 100644
--- a/trunk/src/app/srs_app_rtmp_conn.cpp
+++ b/trunk/src/app/srs_app_rtmp_conn.cpp
@@ -942,7 +942,6 @@ srs_error_t SrsRtmpConn::do_publishing(SrsLiveSource* source, SrsPublishRecvThre
 
 srs_error_t SrsRtmpConn::acquire_publish(SrsLiveSource* source)
 {
-    srs_error_t err = srs_success;
     
     SrsRequest* req = info->req;
 
@@ -953,6 +952,7 @@ srs_error_t SrsRtmpConn::acquire_publish(SrsLiveSource* source)
 
     // Check whether RTC stream is busy.
 #ifdef SRS_RTC
+    srs_error_t err = srs_success;
     SrsRtcSource *rtc = NULL;
     bool rtc_server_enabled = _srs_config->get_rtc_server_enabled();
     bool rtc_enabled = _srs_config->get_rtc_enabled(req->vhost);