diff --git a/entrypoints/setup_git.sh b/entrypoints/setup_git.sh
index 53171805..3dd07d42 100755
--- a/entrypoints/setup_git.sh
+++ b/entrypoints/setup_git.sh
@@ -14,8 +14,4 @@ REPO="${GITHUB_REPO%%#*}"
 git remote add origin "${REPO}"
 git fetch
 DEFAULT_BRANCH=$(git remote show origin | sed -n '/HEAD branch/s/.*: //p')
-git reset --hard origin/"${DEFAULT_BRANCH}"
-if [ -n "${TAG}" ]
-then
-    git checkout "${TAG}"
-fi
+git reset --hard origin/"${TAG:-$DEFAULT_BRANCH}"