diff --git a/libsrc/include/mydefs.hpp b/libsrc/include/mydefs.hpp
index 55143a6d..63965b52 100644
--- a/libsrc/include/mydefs.hpp
+++ b/libsrc/include/mydefs.hpp
@@ -20,7 +20,7 @@
 // in the configure/make phases, with the 
 // right version number
 #ifdef WIN32
-#define PACKAGE_VERSION "5.1-dev"
+#define PACKAGE_VERSION "5.1"
 #endif