diff --git a/mozilla/config/make-jars.pl b/mozilla/config/make-jars.pl
index bf1b1f53cb5..e64111a758c 100644
--- a/mozilla/config/make-jars.pl
+++ b/mozilla/config/make-jars.pl
@@ -127,6 +127,7 @@ sub JarIt
 	    $err = $? >> 8;
 	zipErrorCheck($err);
     }
+    Cleanup();
 }
 
 sub MkDirs
@@ -299,4 +300,3 @@ while (<STDIN>) {
     }
 }
 
-Cleanup();