diff --git a/cms/envs/devstack_docker.py b/cms/envs/devstack_docker.py
index 7a8a16e32b..f4df375b64 100644
--- a/cms/envs/devstack_docker.py
+++ b/cms/envs/devstack_docker.py
@@ -15,3 +15,5 @@ FEATURES.update({
     'ENABLE_COURSEWARE_INDEX': False,
     'ENABLE_LIBRARY_INDEX': False,
 })
+
+CREDENTIALS_SERVICE_USERNAME = 'credentials_worker'
diff --git a/lms/envs/devstack_docker.py b/lms/envs/devstack_docker.py
index 43271ab405..4a9b5e00e9 100644
--- a/lms/envs/devstack_docker.py
+++ b/lms/envs/devstack_docker.py
@@ -58,3 +58,5 @@ MKTG_URLS = {
     'TOS_AND_HONOR': '/edx-terms-service',
     'WHAT_IS_VERIFIED_CERT': '/verified-certificate',
 }
+
+CREDENTIALS_SERVICE_USERNAME = 'credentials_worker'