--- a/devtools/devctl.py	Wed Feb 22 09:31:54 2012 +0100
+++ b/devtools/devctl.py	Thu Feb 23 11:58:16 2012 +0100
@@ -303,7 +303,7 @@
         from logilab.common.shellutils import globfind, find, rm
         from logilab.common.modutils import get_module_files
         from cubicweb.i18n import extract_from_tal, execute
-        tempdir = tempfile.mkdtemp()
+        tempdir = tempfile.mkdtemp(prefix='cw-')
         cwi18ndir = WebConfiguration.i18n_lib_dir()
         print '-> extract schema messages.'
         schemapot = osp.join(tempdir, 'schema.pot')