diff --git a/httpserver.h b/httpserver.h
index 264d3df..2c92a0b 100644
--- a/httpserver.h
+++ b/httpserver.h
@@ -12,7 +12,7 @@ constexpr int MSECS_TO_AUTOREMOVE_MESSAGES_FROM_BUFFER {15000}; // 15 secs
 constexpr int MAX_MESSAGE_LENGTH_WITHOUT_WBR = 30;
 constexpr int MAX_NICKNAME_LENGTH_WITHOUT_WBR = 20;
 constexpr int BUFFER_SIZE = 2048;
-const QString HTTP_ACTUAL_ETAG {"2021-12-30 2.1.0"}; // Change it if svg, css or ico was modified
+const QString HTTP_ACTUAL_ETAG {__DATE__ __TIME__}; // Change it if svg, css or ico was modified
 
 class Message : public QObject
 {