diff --git a/data/content/aws-stack.yml b/data/content/aws-stack.yml
index 7a14bf2491..e7f456caef 100644
--- a/data/content/aws-stack.yml
+++ b/data/content/aws-stack.yml
@@ -474,7 +474,7 @@ Parameters:
 
   EnableInstanceStorage:
     Type: String
-    Description: Mount available NVMe Instance Storage at /mnt/ephemeral
+    Description: Mount available NVMe Instance Storage at /mnt/ephemeral, and use it to store docker images and containers, and the build working directory. You must ensure that the instance types have instance storage available for this to have any effect. See https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-store-volumes.html
     AllowedValues:
       - "true"
       - "false"