diff --git a/xml-security.spec b/xml-security.spec
index af29f7b..b4ccde8 100644
--- a/xml-security.spec
+++ b/xml-security.spec
@@ -29,6 +29,7 @@
 #
 
 %global oname xmlsec
+%global _version %(echo %{version} | tr . _ )
 
 Name:           xml-security
 Version:        1.5.7