diff --git a/crates/test_utils/src/main.rs b/crates/test_utils/src/main.rs
index ed72364d76b4..72a5063a1f4c 100644
--- a/crates/test_utils/src/main.rs
+++ b/crates/test_utils/src/main.rs
@@ -21,7 +21,8 @@ fn main() {
         let output = cmd
             .args([
                 "checkout",
-                "main",
+                "HEAD",
+                "--",
                 format!("{}/event.prerequest.js", runner.2).as_str(),
             ])
             .output();