diff --git a/doc/src/sgml/ref/create_resource_group.sgml b/doc/src/sgml/ref/create_resource_group.sgml
index 2e3be65d02257982f969ee5b6f125549f6cd474d..786f7c138e97829e78bc5634d87eb7b1167101b9 100755
--- a/doc/src/sgml/ref/create_resource_group.sgml
+++ b/doc/src/sgml/ref/create_resource_group.sgml
@@ -28,6 +28,7 @@ where group_attribute is:
    [ CONCURRENCY=integer ]
    [ MEMORY_SHARED_QUOTA=integer ]
    [ MEMORY_SPILL_RATIO=integer ]
+   [ MEMORY_AUDITOR= {vmtracker | cgroup} ]
 
 </synopsis>
  </refsynopsisdiv>