diff --git a/tools/git-usage.md b/tools/git-usage.md
index 8d2fff6..aee7bba 100644
--- a/tools/git-usage.md
+++ b/tools/git-usage.md
@@ -4,7 +4,7 @@
 
 When it's an automatically generated file!
 
-For composer.json:
+For `composer.lock`, for example:
 
 ```
 rm composer.lock