diff --git a/sqs_queue.py b/sqs_queue.py
index 2a1de9d0bd0..79e19cbda9d 100644
--- a/sqs_queue.py
+++ b/sqs_queue.py
@@ -73,6 +73,7 @@
   kms_master_key_id:
     description:
       - The ID of an AWS-managed customer master key (CMK) for Amazon SQS or a custom CMK.
+      - Specifying a valid I(kms_master_key_id) will enable encryption automatically.
     type: str
   kms_data_key_reuse_period_seconds:
     description: