diff --git a/stdafx.cpp b/stdafx.cpp
index 9dd6e170c6e91..d5eadcfe61096 100644
--- a/stdafx.cpp
+++ b/stdafx.cpp
@@ -33,6 +33,6 @@
 
 namespace mongo {
 
-    const char versionString[] = "0.9.9";
+    const char versionString[] = "0.9.9+";
 
 } // namespace mongo