diff --git a/.github/workflows/main_matrix.yml b/.github/workflows/main_matrix.yml
index 14616ca22..257f96442 100644
--- a/.github/workflows/main_matrix.yml
+++ b/.github/workflows/main_matrix.yml
@@ -98,11 +98,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-          uses: actions/checkout@v3
-          with:
-            submodules: "recursive"
-            ref: ${{github.event.pull_request.head.ref}}
-            repository: ${{github.event.pull_request.head.repo.full_name}}
+        uses: actions/checkout@v3
+        with:
+          submodules: "recursive"
+          ref: ${{github.event.pull_request.head.ref}}
+          repository: ${{github.event.pull_request.head.repo.full_name}}
 
       - uses: ./.github/workflows/build_esp32.yml
         with: