diff --git a/src/ESPAsyncWebServer.h b/src/ESPAsyncWebServer.h
index 3c9059f..23b14c4 100644
--- a/src/ESPAsyncWebServer.h
+++ b/src/ESPAsyncWebServer.h
@@ -40,6 +40,12 @@
 #error Platform not supported
 #endif
 
+#define ASYNCWEBSERVER_VERSION "2.1.0"
+#define ASYNCWEBSERVER_VERSION_MAJOR 2
+#define ASYNCWEBSERVER_VERSION_MINOR 1
+#define ASYNCWEBSERVER_VERSION_REVISION 0
+#define ASYNCWEBSERVER_FORK_mathieucarbou
+
 #ifdef ASYNCWEBSERVER_REGEX
 #define ASYNCWEBSERVER_REGEX_ATTRIBUTE
 #else