diff --git a/AUTHORS b/AUTHORS
index 71bb95c3e1..894a788e94 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -195,6 +195,7 @@ Patches have also been contributed by:
   Xu He Jie            <xuhj@linux.vnet.ibm.com>
   Lei Li               <lilei@linux.vnet.ibm.com>
   Matthias Witte       <witte@netzquadrat.de>
+  Tang Chen            <tangchen@cn.fujitsu.com>
 
   [....send patches to get your name here....]
 
diff --git a/tools/virsh.c b/tools/virsh.c
index 3da8bc5288..9532bc303a 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -1897,8 +1897,9 @@ cmdDefine(vshControl *ctl, const vshCmd *cmd)
  * "undefine" command
  */
 static const vshCmdInfo info_undefine[] = {
-    {"help", N_("undefine an inactive domain")},
-    {"desc", N_("Undefine the configuration for an inactive domain.")},
+    {"help", N_("undefine a domain")},
+    {"desc",
+     N_("Undefine an inactive domain, or convert persistent to transient.")},
     {NULL, NULL}
 };