diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 76f1e65..b79d97b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,5 +23,4 @@ jobs:
        env:
          TZ: UTC
        run: |
-         cmp /usr/share/zoneinfo/${TZ} /etc/localtime || echo "files are different"
          docker build ./ckan -t kowhai/ckan-docker-ckan:testing-only       
\ No newline at end of file
diff --git a/ckan/Dockerfile b/ckan/Dockerfile
index 4e45216..be8bfd2 100644
--- a/ckan/Dockerfile
+++ b/ckan/Dockerfile
@@ -5,7 +5,7 @@ LABEL maintainer="brett@kowh.ai"
 # Set timezone
 ARG TZ
 RUN echo $TZ > /etc/timezone
-RUN cp /usr/share/zoneinfo/$TZ /etc/localtime
+RUN cmp /usr/share/zoneinfo/${TZ} /etc/localtime || cp /usr/share/zoneinfo/${TZ} /etc/localtime
 
 # Install any extensions needed by your CKAN instance
 # (Make sure to add the plugins to CKAN__PLUGINS in the .env file)