diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 4cb9bf54d..c491f6504 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -36,7 +36,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"
 #define RTMP_SIG_SRS_CODE "OuXuli"
-#define RTMP_SIG_SRS_ROLE "origin/edge server"
+#define RTMP_SIG_SRS_ROLE "cluster"
 #define RTMP_SIG_SRS_NAME RTMP_SIG_SRS_KEY"(Simple RTMP Server)"
 #define RTMP_SIG_SRS_URL_SHORT "github.com/simple-rtmp-server/srs"
 #define RTMP_SIG_SRS_URL "https://"RTMP_SIG_SRS_URL_SHORT