diff --git a/trunk/src/protocol/srs_protocol_utility.cpp b/trunk/src/protocol/srs_protocol_utility.cpp
index 620ebfea4..07f63175f 100644
--- a/trunk/src/protocol/srs_protocol_utility.cpp
+++ b/trunk/src/protocol/srs_protocol_utility.cpp
@@ -56,7 +56,6 @@ void srs_discovery_tc_url(string tcUrl, string& schema, string& host, string& vh
     //      rtmp://ip/app/app2/stream?k=v
     // Where after last slash is stream.
     fullUrl += stream.empty() ? "/" : (stream.at(0) == '/' ? stream : "/" + stream);
-    fullUrl += param.empty() ? "" : (param.at(0) == '?' ? param : "?" + param);
 
     // First, we covert the FMLE URL to standard URL:
     //      rtmp://ip/app/app2?k=v/stream , or: