diff --git a/trunk/src/app/srs_app_rtc_api.cpp b/trunk/src/app/srs_app_rtc_api.cpp
index 3a5791cb2..52c78cf45 100644
--- a/trunk/src/app/srs_app_rtc_api.cpp
+++ b/trunk/src/app/srs_app_rtc_api.cpp
@@ -195,6 +195,8 @@ srs_error_t SrsGoApiRtcPlay::do_serve_http(ISrsHttpResponseWriter* w, ISrsHttpMe
     }
 
     string local_sdp_str = os.str();
+    // Filter the \r\n to \\r\\n for JSON.
+    local_sdp_str = srs_string_replace(local_sdp_str.c_str(), "\r\n", "\\r\\n");
 
     res->set("code", SrsJsonAny::integer(ERROR_SUCCESS));
     res->set("server", SrsJsonAny::integer(SrsStatistic::instance()->server_id()));
@@ -207,7 +209,7 @@ srs_error_t SrsGoApiRtcPlay::do_serve_http(ISrsHttpResponseWriter* w, ISrsHttpMe
     srs_trace("RTC username=%s, offer=%dB, answer=%dB", session->username().c_str(),
         remote_sdp_str.length(), local_sdp_str.length());
     srs_trace("RTC remote offer: %s", srs_string_replace(remote_sdp_str.c_str(), "\r\n", "\\r\\n").c_str());
-    srs_trace("RTC local answer: %s", srs_string_replace(local_sdp_str.c_str(), "\r\n", "\\r\\n").c_str());
+    srs_trace("RTC local answer: %s", local_sdp_str.c_str());
 
     return err;
 }
@@ -545,6 +547,8 @@ srs_error_t SrsGoApiRtcPublish::do_serve_http(ISrsHttpResponseWriter* w, ISrsHtt
     }
 
     string local_sdp_str = os.str();
+    // Filter the \r\n to \\r\\n for JSON.
+    local_sdp_str = srs_string_replace(local_sdp_str.c_str(), "\r\n", "\\r\\n");
 
     res->set("code", SrsJsonAny::integer(ERROR_SUCCESS));
     res->set("server", SrsJsonAny::integer(SrsStatistic::instance()->server_id()));
@@ -557,7 +561,7 @@ srs_error_t SrsGoApiRtcPublish::do_serve_http(ISrsHttpResponseWriter* w, ISrsHtt
     srs_trace("RTC username=%s, offer=%dB, answer=%dB", session->username().c_str(),
         remote_sdp_str.length(), local_sdp_str.length());
     srs_trace("RTC remote offer: %s", srs_string_replace(remote_sdp_str.c_str(), "\r\n", "\\r\\n").c_str());
-    srs_trace("RTC local answer: %s", srs_string_replace(local_sdp_str.c_str(), "\r\n", "\\r\\n").c_str());
+    srs_trace("RTC local answer: %s", local_sdp_str.c_str());
 
     return err;
 }
diff --git a/trunk/src/app/srs_app_rtc_sdp.cpp b/trunk/src/app/srs_app_rtc_sdp.cpp
index b5b942675..86fd5a2fd 100644
--- a/trunk/src/app/srs_app_rtc_sdp.cpp
+++ b/trunk/src/app/srs_app_rtc_sdp.cpp
@@ -34,7 +34,7 @@ using namespace std;
 #include <srs_kernel_log.hpp>
 
 // TODO: FIXME: Maybe we should use json.encode to escape it?
-const std::string kCRLF = "\\r\\n";
+const std::string kCRLF = "\r\n";
 
 #define FETCH(is,word) \
 if (!(is >> word)) {\