diff --git a/.github/workflows/pr_check.yml b/.github/workflows/pr_check.yml
index 7c4bf50..4832c30 100644
--- a/.github/workflows/pr_check.yml
+++ b/.github/workflows/pr_check.yml
@@ -29,8 +29,8 @@ jobs:
 
       - name: Override iap package with stub
         if: ${{ env.STUB_IAP }}
-        run: .github/scripts/stub_iap.sh
-        shell: bash
+        working-directory: ${{ github.workspace }}/m3_lightmeter
+        run: bash ./.github/scripts/stub_iap.sh
 
       - uses: actions/checkout@v3
         with: