diff --git a/source/_integrations/clicksend.markdown b/source/_integrations/clicksend.markdown
index 4e7de523b20..d5b6e09f501 100644
--- a/source/_integrations/clicksend.markdown
+++ b/source/_integrations/clicksend.markdown
@@ -54,7 +54,7 @@ recipient:
   required: true
   type: [string, list]
 sender:
-  description: The name or number of the sender.
+  description: The name or number of the sender. (Limited to 11 characters.)
   required: false
   type: string
   default: 'hass'