diff --git a/configuration/ldap_config.py b/configuration/ldap_config.py
index 19277e1..23a1e6d 100644
--- a/configuration/ldap_config.py
+++ b/configuration/ldap_config.py
@@ -71,6 +71,7 @@ AUTH_LDAP_USER_FLAGS_BY_GROUP = {
 
 # For more granular permissions, we can map LDAP groups to Django groups.
 AUTH_LDAP_FIND_GROUP_PERMS = os.environ.get('AUTH_LDAP_FIND_GROUP_PERMS', 'True').lower() == 'true'
+AUTH_LDAP_MIRROR_GROUPS = os.environ.get('AUTH_LDAP_MIRROR_GROUPS', None).lower() == 'true'
 
 # Cache groups for one hour to reduce LDAP traffic
 AUTH_LDAP_CACHE_TIMEOUT = int(os.environ.get('AUTH_LDAP_CACHE_TIMEOUT', 3600))