diff --git a/libraries/ESP8266mDNS/src/LEAmDNS.h b/libraries/ESP8266mDNS/src/LEAmDNS.h
index 39b2bad81e..fe02560aec 100644
--- a/libraries/ESP8266mDNS/src/LEAmDNS.h
+++ b/libraries/ESP8266mDNS/src/LEAmDNS.h
@@ -194,6 +194,11 @@ class MDNSResponder
     // for compatibility...
     bool setHostname(const String& p_strHostname);
 
+    bool isRunning(void)
+    {
+        return (m_pUDPContext != 0);
+    }
+
     /**
         hMDNSService (opaque handle to access the service)
     */