diff --git a/Dockerfile b/Dockerfile
index 2f3f263..06f4f2a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,10 +2,10 @@ FROM ghcr.io/unb-libraries/drupal:10.x-1.x-unblib
 MAINTAINER UNB Libraries <libsupport@unb.ca>
 
 # Install additional OS packages.
-ENV ADDITIONAL_OS_PACKAGES postfix php-ldap php-zip php81-pecl-redis
-ENV DRUPAL_SITE_ID cogswell
-ENV DRUPAL_SITE_URI cogswell.lib.unb.ca
-ENV DRUPAL_SITE_UUID ac1ac8fe-3818-46e4-92b1-b4b64ac6e0c3
+ENV ADDITIONAL_OS_PACKAGES="postfix php-ldap php-zip php81-pecl-redis"
+ENV DRUPAL_SITE_ID="cogswell"
+ENV DRUPAL_SITE_URI="cogswell.lib.unb.ca"
+ENV DRUPAL_SITE_UUID="ac1ac8fe-3818-46e4-92b1-b4b64ac6e0c3"
 
 # Build application.
 COPY ./build/ /build/