diff --git a/ap/app/clatd/clatd.c b/ap/app/clatd/clatd.c
index a1552d2..a5cd0a9 100755
--- a/ap/app/clatd/clatd.c
+++ b/ap/app/clatd/clatd.c
@@ -403,7 +403,10 @@
       // If any other bit is set, assume it's due to an error (i.e. POLLERR).
       if (wait_fd[0].revents & ~POLLIN) {
         // ring_read doesn't clear the error indication on the socket.
-        recv(tunnel->read_fd6, NULL, 0, MSG_PEEK);
+        if(recv(tunnel->read_fd6, NULL, 0, MSG_PEEK) == -1)
+		{
+			logmsg_dbg(ANDROID_LOG_ERROR,"recv fd6 failed");
+        }
         logmsg(ANDROID_LOG_WARN, "event_loop: clearing error on read_fd6: %s",
                strerror(errno));
       }