diff --git a/lib/ansible/modules/net_tools/nsupdate.py b/lib/ansible/modules/net_tools/nsupdate.py
index 9c33a082d5f..06765bf4e60 100644
--- a/lib/ansible/modules/net_tools/nsupdate.py
+++ b/lib/ansible/modules/net_tools/nsupdate.py
@@ -36,7 +36,7 @@ options:
         default: 'present'
     server:
         description:
-            - Apply DNS modification on this server.
+            - Apply DNS modification on this server, specified by IPv4 or IPv6 address.
         required: true
     port:
         description: