diff --git a/lib/ansible/modules/network/nxos/nxos_switchport.py b/lib/ansible/modules/network/nxos/nxos_switchport.py
index 13bc5f0f419..d2a2eff39a3 100644
--- a/lib/ansible/modules/network/nxos/nxos_switchport.py
+++ b/lib/ansible/modules/network/nxos/nxos_switchport.py
@@ -73,7 +73,7 @@ options:
     trunk_allowed_vlans:
         description:
             - if C(mode=trunk), these are the only VLANs that will be
-              configured on the trunk, i.e. "2-10,15"
+              configured on the trunk, i.e. "2-10,15".
         required: false
         version_added: 2.2
         default: null