diff --git a/phosphor-ldap-config/ldap_configuration.cpp b/phosphor-ldap-config/ldap_configuration.cpp
index 6fdc511..9e918e4 100644
--- a/phosphor-ldap-config/ldap_configuration.cpp
+++ b/phosphor-ldap-config/ldap_configuration.cpp
@@ -137,6 +137,7 @@
         confData << "filter passwd (objectclass=*)\n";
         confData << "map passwd uid cn\n";
         confData << "map passwd gecos displayName\n";
+        confData << "filter group (objectclass=posixGroup)\n";
     }
     try
     {