diff --git a/sonoff/xdrv_06_snfbridge.ino b/sonoff/xdrv_06_snfbridge.ino
index 8ce639c46..caf67186b 100644
--- a/sonoff/xdrv_06_snfbridge.ino
+++ b/sonoff/xdrv_06_snfbridge.ino
@@ -557,7 +557,7 @@ boolean SonoffBridgeCommand()
           break;
         }
       } else {
-        char rawsend[XdrvMailbox.data_len];
+        char rawsend[XdrvMailbox.data_len+1];
         sprintf(rawsend,"%s",charclean(XdrvMailbox.data));
         SerialSendRaw(rawsend, strlen(rawsend));
         sonoff_bridge_receive_raw_flag = 1;