diff --git a/lib/jqueue.py b/lib/jqueue.py
index 01a5816fd9c4f6e25815788d0fd57b4d37633088..285a1bfe505cf1f23c19d37af521c761b48e0579 100644
--- a/lib/jqueue.py
+++ b/lib/jqueue.py
@@ -321,7 +321,7 @@ class JobStorage(object):
 
     """
     jfiles = self._ListJobFiles()
-    return [m.group(1) for m in
+    return [int(m.group(1)) for m in
             [self._RE_JOB_FILE.match(name) for name in jfiles]]
 
   def _ListJobFiles(self):