diff --git a/src/index.js b/src/index.js
index 33ad595..2d15912 100644
--- a/src/index.js
+++ b/src/index.js
@@ -112,7 +112,7 @@ async function run(octokit, context, token) {
 	console.log('checking out and building base commit');
 	try {
 		if (!baseRef) throw Error('missing context.payload.base.ref');
-		await exec(`git reset --hard ${baseRef}`);
+		await exec(`git reset --hard ${baseRef} --`);
 	} catch (e) {
 		await exec(`git reset --hard ${baseSha}`);
 	}