diff --git a/Makefile b/Makefile
index a4f6534..a0966ff 100644
--- a/Makefile
+++ b/Makefile
@@ -13,4 +13,5 @@ test   :; forge test -vvv
 download :; cast etherscan-source --chain ${chain} -d src/etherscan/${chain}_${address} ${address}
 git-diff :
 	@mkdir -p diffs
+	@npx prettier ${before} ${after} --write
 	@printf '%s\n%s\n%s\n' "\`\`\`diff" "$$(git diff --no-index --diff-algorithm=patience --ignore-space-at-eol ${before} ${after})" "\`\`\`" > diffs/${out}.md