diff --git a/.github/workflows/platform-io.yml b/.github/workflows/platform-io.yml
index 4158c13f..93291778 100644
--- a/.github/workflows/platform-io.yml
+++ b/.github/workflows/platform-io.yml
@@ -20,6 +20,9 @@ jobs:
         pip install platformio
     - name: Build knx-usb
       run: platformio ci --lib="." --project-conf=examples/knx-usb/platformio-ci.ini examples/knx-usb/src/main.cpp
+    - name: debug
+      run: | 
+        ls -l
     - name: Build knx-demo
       run: platformio ci --lib="." --project-conf=examples/knx-demo/platformio-ci.ini examples/knx-demo/knx-demo.ino
     - name: Build knx-demo-coupler