diff --git a/.githooks/pre-commit b/.githooks/pre-commit
index a74fd90..b328071 100755
--- a/.githooks/pre-commit
+++ b/.githooks/pre-commit
@@ -13,10 +13,8 @@ if [ -z "$FILES" ]; then
     exit 0
 fi
 
-for file in $FILES; do
-    clang-format -i "$file"
-    git add "$file"
-done
+git diff -U0 --cached | \
+python3 <(curl -s https://raw.githubusercontent.com/llvm/llvm-project/refs/heads/main/clang/tools/clang-format/clang-format-diff.py) -p1 -i
 
 echo "Running clang-tidy..."