diff --git a/develop/develop-images/dockerfile_best-practices.md b/develop/develop-images/dockerfile_best-practices.md
index 567bcff101..1ef4c2872d 100644
--- a/develop/develop-images/dockerfile_best-practices.md
+++ b/develop/develop-images/dockerfile_best-practices.md
@@ -654,7 +654,7 @@ auto-magically bump the version of the software in your container.
 
 Each `ENV` line creates a new intermediate layer, just like `RUN` commands. This
 means that even if you unset the environment variable in a future layer, it
-still persists in this layer and its value can be dumped. You can test this by
+still persists in this layer and its value can't be dumped. You can test this by
 creating a Dockerfile like the following, and then building it.
 
 ```Dockerfile