diff --git a/Dockerfile b/Dockerfile
index 6ce3fa9..22186b1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,5 +4,10 @@ FROM zenika/alpine-chrome:${BASE_IMAGE_TAG}
 LABEL maintainer="eiriksm <eirik@nymedia.no>"
 LABEL description="Chrome driver for selenium testing"
 
+ENV LOG_LEVEL=WARNING
+
 EXPOSE 8643
-ENTRYPOINT ["chromedriver", "--allowed-ips=","--allowed-origins=*", "--port=8643", "--url-base=wd/hub", "--headless", "--no-sandbox", "--whitelisted-ips="]
+
+# Use the "shell form" for ENTRYPOINT so we can do variable expansion:
+# https://docs.docker.com/reference/dockerfile/#shell-form-entrypoint-example
+ENTRYPOINT chromedriver --allowed-ips= --allowed-origins=* --port=8643 --url-base=wd/hub --headless --no-sandbox --whitelisted-ips= --log-level=$LOG_LEVEL