diff --git a/libraries/entropy/const.py b/libraries/entropy/const.py
index e72fc8d1a..54db8872f 100644
--- a/libraries/entropy/const.py
+++ b/libraries/entropy/const.py
@@ -360,6 +360,7 @@ def const_default_settings(rootdir):
         # File containing user data related to repository notice board
         'rss-notice-board-userdata': "notice.rss.userdata",
 
+        'entropytagprefix': "#",
         'packagesetprefix': "@",
         'userpackagesetsid': "__user__",
         'setsconffilename': "sets.conf",