diff --git a/.github/workflows/pr_to_main.yml b/.github/workflows/pr_to_main.yml
index 6661953..71fea6e 100644
--- a/.github/workflows/pr_to_main.yml
+++ b/.github/workflows/pr_to_main.yml
@@ -32,7 +32,7 @@ jobs:
         run: |
           git fetch origin main
           main_sha=$(git rev-parse origin/main)
-          echo "changed_files=$(git diff --diff-filter=d --no-commit-id --name-only -r $main_sha... | grep "\.sql$")" >> $GITHUB_OUTPUT
+          echo "changed_files=$(git diff --diff-filter=d --no-commit-id --name-only -r $main_sha... | grep "\.sql$")" >> "$GITHUB_OUTPUT"
 
       - name: Lint dbt models
         if: steps.get_changed_files.outputs.changed_files != ''