diff --git a/README.md b/README.md
index 59f800f..148fc9f 100644
--- a/README.md
+++ b/README.md
@@ -139,7 +139,8 @@ this sets the mtime for the post to right now, invalidating the reference to
 it as bingus-blog believes that the contents have changed.
 
 to improve cache availability, it is considered good practice to always set
-`DONT_CACHE` if there is at least one query param.
+`DONT_CACHE` if there is at least one query param. this is already done by
+bingus-blog, but you can opt out by `unset`ting it.
 
 ### fastblag