diff --git a/.github/workflows/deploy.sh b/.github/workflows/deploy.sh
index 9970f6e3..409e8eaa 100755
--- a/.github/workflows/deploy.sh
+++ b/.github/workflows/deploy.sh
@@ -18,7 +18,11 @@ slugify() {
 }
 
 deploy() {
-  git_branch=$(git branch --show-current)
+  if [[ ! -z "$GITHUB_REF_NAME" ]]; then
+    git_branch=$GITHUB_REF_NAME
+  else
+    git_branch=$(git branch --show-current)
+  fi
   echo "Current git branch is '${git_branch}'."
 
   git config user.name github-actions