diff --git a/cli/src/main/java/org/onosproject/cli/net/DevicePortStateCommand.java b/cli/src/main/java/org/onosproject/cli/net/DevicePortStateCommand.java
index 3962266..b2a9844 100644
--- a/cli/src/main/java/org/onosproject/cli/net/DevicePortStateCommand.java
+++ b/cli/src/main/java/org/onosproject/cli/net/DevicePortStateCommand.java
@@ -39,7 +39,8 @@
             required = true, multiValued = false)
     Integer portNumber = null;
 
-    @Argument(index = 2, name = "portState", description = "Desired State",
+    @Argument(index = 2, name = "portState",
+            description = "Desired State. Either \"enable\" or \"disable\".",
             required = true, multiValued = false)
     String portState = null;