diff --git a/lib/ansible/modules/cloud/amazon/ec2.py b/lib/ansible/modules/cloud/amazon/ec2.py
index 3c07b862b06..f17e825ecfe 100644
--- a/lib/ansible/modules/cloud/amazon/ec2.py
+++ b/lib/ansible/modules/cloud/amazon/ec2.py
@@ -118,7 +118,7 @@ options:
   spot_wait_timeout:
     version_added: "1.5"
     description:
-      - How long to wait for the spot instance request to be fulfilled.
+      - How long to wait for the spot instance request to be fulfilled. Affects 'Request valid until' for setting spot request lifespan.
     default: 600
     type: int
   count: