diff --git a/tests/_test_helper.bash b/tests/_test_helper.bash
index e0f3d37..fd41353 100644
--- a/tests/_test_helper.bash
+++ b/tests/_test_helper.bash
@@ -8,6 +8,7 @@ function init_git_repo {
   else
     # Initialise test git repo at the same path as the test files
     git init "$BATS_TEST_DIRNAME"
+    git checkout -b main
     # Tests will fail if name and email aren't set
     git config user.name "John Doe"
     git config user.email johndoe@example.com