diff --git a/.github/workflows/single-include.yml b/.github/workflows/single-include.yml
index 61289dc..44a5a66 100644
--- a/.github/workflows/single-include.yml
+++ b/.github/workflows/single-include.yml
@@ -16,7 +16,12 @@ jobs:
     - name: check if equal
       working-directory: ${{runner.workspace}}/inja/single_include/
       shell: bash
-      run: diff inja/inja.hpp inja/inja_old.hpp >/dev/null
+      run: |
+        pwd
+        ls inja
+        cat inja/inja.hpp
+        cat inja/inja_old.hpp
+        diff inja/inja.hpp inja/inja_old.hpp >/dev/null
 
     - uses: actions/upload-artifact@v1
       with: