diff --git a/pym/cl_builder.py b/pym/cl_builder.py
index fa5254d..24e09c6 100644
--- a/pym/cl_builder.py
+++ b/pym/cl_builder.py
@@ -386,7 +386,8 @@ class cl_builder(color_print):
         self.targetDistr.installFrom(self.sourceDistr)
         self.printByResult(True)
         self.printMessageForTest(_("Creating installed package list"))
-        self.printByResult(self.createPackageList(sourceDirectory,isoFile+".list"))
+        self.printByResult(self.createPackageList(sourceDirectory,
+                           isoFile[:-4]+".list"))
         self.printMessageForTest(_("Creating DIGESTS file"))
         self.printByResult(self.createDigest(isoFile,isoFile+".DIGESTS"))