diff --git a/layer.md b/layer.md
index a3ab528e..91a4b4b1 100644
--- a/layer.md
+++ b/layer.md
@@ -258,7 +258,7 @@ b/
 c/file3
 ```
 
-If we then delete `file1`, `file2`, and `b/`, the next layer looks like:
+If we then delete `file1`, `file2`, and `b/`, while leaving `file3` and adding `file4, the next layer looks like:
 
 ```text
 .wh.file1