diff --git a/version.cpp.rl b/version.cpp.rl
index b70f2cf7..28251365 100644
--- a/version.cpp.rl
+++ b/version.cpp.rl
@@ -113,7 +113,7 @@ version::sanity (void) const {
 //-----------------------------------------------------------------------------
 util::version
 util::version::parse (const std::string& str) {
-    unsigned int accum;
+    unsigned int accum = 0;
 
     int         cs;
     const char *p   = str.data (),