diff --git a/skynet-src/socket_server.c b/skynet-src/socket_server.c
index 9821bd71..e1df3f67 100644
--- a/skynet-src/socket_server.c
+++ b/skynet-src/socket_server.c
@@ -335,7 +335,6 @@ open_socket(struct socket_server *ss, struct request_open * request, struct sock
 			sock = -1;
 			continue;
 		}
-		sp_nonblocking(sock);
 		break;
 	}