diff --git a/packer/src/main.rs b/packer/src/main.rs
index 4907fd0ae..40510820c 100644
--- a/packer/src/main.rs
+++ b/packer/src/main.rs
@@ -405,7 +405,7 @@ mod test {
         let tmp_dir = tempdir::TempDir::new("manifest_test")?;
 
         let archive_paths = &[(PackType::Core, artifact_path)];
-        let path = manifest(archive_paths, &None, &tmp_dir.path())?;
+        let path = manifest(archive_paths, &None, tmp_dir.path())?;
 
         let manifest_content = std::fs::read_to_string(&path)?;