diff --git a/libraries/ESP8266mDNS/ESP8266mDNS.cpp b/libraries/ESP8266mDNS/ESP8266mDNS.cpp
index 34fdd4757..a690bdf22 100644
--- a/libraries/ESP8266mDNS/ESP8266mDNS.cpp
+++ b/libraries/ESP8266mDNS/ESP8266mDNS.cpp
@@ -495,7 +495,7 @@ void MDNSResponder::_reply(uint8_t replyMask, char * service, char *proto, uint1
   size_t hostNameLen = hostName.length();
 
   char underscore[]  = "_";
-
+ 
   // build service name with _
   char serviceName[os_strlen(service)+2];
   os_strcpy(serviceName,underscore);