diff --git a/format.sh b/format.sh
index 671de7d..b0b797b 100755
--- a/format.sh
+++ b/format.sh
@@ -13,4 +13,4 @@ cargo fmt -- \
 RUST_LOG=error taplo fmt Cargo.toml htmlshell/Cargo.toml
 
 # Format HTML, CSS, and JS
-npx --yes prettier --write "ui/**/*.{html,css,js,json}"
+npx --yes prettier --list-different --write "ui/**/*.{html,css,js,json}"