diff --git a/docs/precommit.md b/docs/precommit.md
index 17bd811b..a5b81721 100644
--- a/docs/precommit.md
+++ b/docs/precommit.md
@@ -90,7 +90,7 @@ Alternately you can save this script as `.git/hooks/pre-commit` and give it exec
 
 ```bash
 #!/bin/sh
-FILES=$(git diff --cached --name-only --diff-filter=ACM "*.js" "*.jsx" | sed 's| |\\ |g')
+FILES=$(git diff --cached --name-only --diff-filter=ACMR "*.js" "*.jsx" | sed 's| |\\ |g')
 [ -z "$FILES" ] && exit 0
 
 # Prettify all selected files