diff --git a/bt5/erp5_administration/SkinTemplateItem/portal_skins/erp5_administration/TemplateTool_deleteObsoleteTemplateList.xml b/bt5/erp5_administration/SkinTemplateItem/portal_skins/erp5_administration/TemplateTool_deleteObsoleteTemplateList.xml
index 63e1887adde59c34d41da65c881ed38978ec772c..1fdf6684b36d055b314456b9d1a38f0a4d21813e 100644
--- a/bt5/erp5_administration/SkinTemplateItem/portal_skins/erp5_administration/TemplateTool_deleteObsoleteTemplateList.xml
+++ b/bt5/erp5_administration/SkinTemplateItem/portal_skins/erp5_administration/TemplateTool_deleteObsoleteTemplateList.xml
@@ -67,7 +67,7 @@ for bt in bt_list:\n
     if len([x for x in bt_list \\\n
      if x.getTitle() == bt.getTitle() and \\\n
         x.getInstallationState() == \'installed\' and \\\n
-        int(x.getRevision() or \'0\') > int(bt.getRevision())]):\n
+        int(x.getRevision() or \'0\') > int(bt.getRevision() or \'0\')]):\n
       delete_list.append(bt_id)\n
 \n
 print \'Deleted id list:%r\' % delete_list\n
diff --git a/bt5/erp5_administration/bt/revision b/bt5/erp5_administration/bt/revision
index 2b82dfea308730c4f925388dbb683e6eae360640..eebd1d10b6ec9917baf4df7f2e3de79e031a9af7 100644
--- a/bt5/erp5_administration/bt/revision
+++ b/bt5/erp5_administration/bt/revision
@@ -1 +1 @@
-60
\ No newline at end of file
+61
\ No newline at end of file