diff --git a/inventory/group_vars/odcs-frontend b/inventory/group_vars/odcs-frontend
index 7907969c39..2299ca36d4 100644
--- a/inventory/group_vars/odcs-frontend
+++ b/inventory/group_vars/odcs-frontend
@@ -41,7 +41,7 @@ odcs_target_dir_url: https://odcs.fedoraproject.org/composes
 # for taskotron.
 # Give access to sgallagh to be able to generate testing composes for new
 # modules.
-odcs_allowed_clients_users: ["jscotka", "sgallagh"]
+odcs_allowed_clients_users: {"jscotka": {}, "sgallagh": {}}
 
 # For the MOTD
 csi_security_category: Low
diff --git a/roles/odcs/base/defaults/main.yml b/roles/odcs/base/defaults/main.yml
index 39a52556a3..213c2b8894 100644
--- a/roles/odcs/base/defaults/main.yml
+++ b/roles/odcs/base/defaults/main.yml
@@ -5,8 +5,8 @@ odcs_pdc_insecure: False
 odcs_pdc_develop: True
 odcs_target_dir: /srv/odcs
 odcs_target_dir_url: http://{{ inventory_hostname }}/composes
-odcs_allowed_clients_groups: ["sysadmin-mbs"]
-odcs_allowed_clients_users: []
+odcs_allowed_clients_groups: {"sysadmin-mbs": {}}
+odcs_allowed_clients_users: {}
 odcs_admin_groups: ["sysadmin-mbs"]
 odcs_admin_users: []
 odcs_allowed_source_types: ["tag", "module"]