diff --git a/lib/gitlab/ldap/group.rb b/lib/gitlab/ldap/group.rb
index 4bfc42a285..ff2b708ad1 100644
--- a/lib/gitlab/ldap/group.rb
+++ b/lib/gitlab/ldap/group.rb
@@ -51,7 +51,8 @@ module Gitlab
         elsif entry.respond_to? :memberof
           entry.memberof
         else
-          raise 'Unsupported member attribute'
+          Rails.logger.warn("Could not find member DNs for LDAP group #{entry.inspect}")
+          []
         end
       end