diff --git a/libraries/ESP8266WebServer/src/ESP8266WebServer.h b/libraries/ESP8266WebServer/src/ESP8266WebServer.h
index 941be0b718..3d1a478d26 100644
--- a/libraries/ESP8266WebServer/src/ESP8266WebServer.h
+++ b/libraries/ESP8266WebServer/src/ESP8266WebServer.h
@@ -50,6 +50,8 @@ enum HTTPUploadStatus { UPLOAD_FILE_START, UPLOAD_FILE_WRITE, UPLOAD_FILE_END,
 enum HTTPClientStatus { HC_NONE, HC_WAIT_READ, HC_WAIT_CLOSE };
 enum HTTPAuthMethod { BASIC_AUTH, DIGEST_AUTH };
 
+#define WEBSERVER_HAS_HOOK 1
+
 #define HTTP_DOWNLOAD_UNIT_SIZE 1460
 
 #ifndef HTTP_UPLOAD_BUFLEN