diff --git a/.drone.yml b/.drone.yml
index 9b16d56..6f4847b 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -36,6 +36,7 @@ steps:
   - name: verify
     image: thegeeklab/alpine-tools
     commands:
+      - tree src
       - src/build/linkcheck/linkcheck --help
       - src/build/linkcheck/linkcheck --version
     depends_on: