diff --git a/scripts/cleanCache.py b/scripts/cleanCache.py
index 10b0464c..a20a6bd9 100755
--- a/scripts/cleanCache.py
+++ b/scripts/cleanCache.py
@@ -14,7 +14,7 @@ def findUnneededFiles():
     dict = {}
     for f in listdir:
         name, ver = util.parse_package_name(f)
-        version = ver.rstrip(".pisi")
+        version = ver.split(".pisi")[0]
         if dict.has_key(name):
             if Version(dict[name]) < Version(version):
                 dict[name] = version