diff --git a/src/caosdb/utils/caosdb_admin.py b/src/caosdb/utils/caosdb_admin.py
index ab8cec654f2fd0eb2b77df0c969295b1f084171c..12f33bfed386ba3f694715ac743d4f05246b0943 100755
--- a/src/caosdb/utils/caosdb_admin.py
+++ b/src/caosdb/utils/caosdb_admin.py
@@ -141,7 +141,7 @@ def do_set_user_password(args):
 
 
 def do_add_user_roles(args):
-    roles = admin._get_roles(user=args.user_name, realm=None)
+    roles = admin._get_roles(username=args.user_name, realm=None)
 
     for r in args.user_roles:
         roles.add(r)
@@ -149,7 +149,7 @@ def do_add_user_roles(args):
 
 
 def do_remove_user_roles(args):
-    roles = admin._get_roles(user=args.user_name, realm=None)
+    roles = admin._get_roles(username=args.user_name, realm=None)
 
     for r in args.user_roles:
         if r in roles:
@@ -178,7 +178,7 @@ def do_delete_user(args):
 
 
 def do_retrieve_user_roles(args):
-    print(admin._get_roles(user=args.user_name))
+    print(admin._get_roles(username=args.user_name))
 
 
 def do_retrieve_role_permissions(args):