diff --git a/plugins/inventory/ec2.ini b/plugins/inventory/ec2.ini
index b931c4a7da..8a0c3ad45c 100644
--- a/plugins/inventory/ec2.ini
+++ b/plugins/inventory/ec2.ini
@@ -51,4 +51,5 @@ cache_path = ~/.ansible/tmp
 
 # The number of seconds a cache file is considered valid. After this many
 # seconds, a new API call will be made, and the cache file will be updated.
+# To disable the cache, set this value to 0
 cache_max_age = 300