diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1243713..74391a8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -24,4 +24,5 @@ jobs:
          TZ: UTC
        run: |
          echo ${TZ}
+         ls -l /usr/share/zoneinfo/
          docker build ./ckan -t kowhai/ckan-docker-ckan:testing-only       
\ No newline at end of file