diff --git a/debian/50gnm.py b/debian/50gnm.py
index d34c744..5a4abfc 100644
--- a/debian/50gnm.py
+++ b/debian/50gnm.py
@@ -10,3 +10,6 @@ A2_REGISTRATION_CAN_DELETE_ACCOUNT = False
 
 # set session age to the CUT "remember me" value
 SESSION_COOKIE_AGE = 3600 * 24 * 30
+
+# allow cart@ds technical roles to be provisionned
+HOBO_PROVISION_ROLE_PREFIXES = ['_cartads_']