diff --git a/src/warden-server/doc/README b/src/warden-server/doc/README
index 1395fd434b16610aa5cfc431c82943dd03400428..74d10d376dfc6773d3faeaf6c2062a52aaabe8e5 100644
--- a/src/warden-server/doc/README
+++ b/src/warden-server/doc/README
@@ -316,8 +316,8 @@ G. Registration of Clients
 
  3. Unregister Client
 
-    In the Warden system, already registered clients can be removed 
-    (unregistered) via unregisterClient.pl.
+    In the Warden system, already registered clients can be unregistered 
+    via unregisterClient.pl.
 
     Following attribute must be provided in order to unregister existing client
     successfully:
@@ -326,9 +326,9 @@ G. Registration of Clients
 
     One can run unregisterClient.pl with -h argument to see a help.
 
-    The process of unregistration deletes this client from clients table in DB.
-    But all messages stored by this client (considering "sender" client) are not 
-    deleted, they are merely set 'invalid' in DB table events.
+    The process of unregistration set client (specified by client_id) like 'invalid'
+    in DB table clients and all messages stored by this client (considering "sender"
+    client) are not deleted, they are merely set 'invalid' in DB table events too.
 
 --------------------------------------------------------------------------------
 H. Status Info