diff --git a/servers/slapd/schema/dyngroup.schema b/servers/slapd/schema/dyngroup.schema
index 5adb0a7441..1650cb4965 100644
--- a/servers/slapd/schema/dyngroup.schema
+++ b/servers/slapd/schema/dyngroup.schema
@@ -57,7 +57,7 @@ attributetype ( NetscapeLDAPattributeType:198
 
 objectClass ( NetscapeLDAPobjectClass:33
 	NAME 'groupOfURLs'
-	SUP top AUXILIARY
+	SUP top STRUCTURAL
 	MUST cn
 	MAY ( memberURL $ businessCategory $ description $ o $ ou $
 		owner $ seeAlso ) )