diff --git a/libsrc/include/mydefs.hpp b/libsrc/include/mydefs.hpp
index cf5322cd..4ef71b6e 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 "4.9.11"
+#define PACKAGE_VERSION "4.9.12-dev"
 #endif