diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 0f8f8c3c7..6fd8bcf5e 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -27,7 +27,9 @@
 // The version config.
 #define VERSION_MAJOR       4
 #define VERSION_MINOR       0
-#define VERSION_REVISION    2
+#define SRS3_VERSION_REVISION    110
+#define SRS4_VERSION_REVISION    2
+#define VERSION_REVISION SRS4_VERSION_REVISION
 
 // The macros generated by configure script.
 #include <srs_auto_headers.hpp>