diff --git a/.github/workflows/matrix-test.yml b/.github/workflows/matrix-test.yml
index 45d44c05a88..21ed4a2b0ad 100644
--- a/.github/workflows/matrix-test.yml
+++ b/.github/workflows/matrix-test.yml
@@ -26,7 +26,7 @@ jobs:
       - name: List all changed files
         run: echo '${{ steps.changed-files.outputs.all_changed_files }}'
       - id: set-matrix
-        run: echo "matrix={\"container\":${{ steps.changed-files.outputs.all_changed_files }}}" >> "$GITHUB_OUTPUT"
+        run: echo "matrix={\"files\":${{ steps.changed-files.outputs.all_changed_files }}}" >> "$GITHUB_OUTPUT"
 
   matrix-job:
     name: Run Matrix Job
@@ -41,4 +41,4 @@ jobs:
         uses: actions/checkout@v3
       - name: Test
         run: |
-          echo ${{ matrix.container }}
+          echo ${{ matrix.files }}