diff --git a/jenkins-vars.yml b/jenkins-vars.yml
index 64ac152..eba19fa 100644
--- a/jenkins-vars.yml
+++ b/jenkins-vars.yml
@@ -26,6 +26,6 @@ repo_vars:
   - CI_DELAY = '120'
   - TEST_MYSQL_HOST = credentials('mysql_test_host')
   - TEST_MYSQL_PASSWORD = credentials('mysql_test_password')
-  - CI_DOCKERENV = '${TEST_MYSQL_HOST}|DB_DATABASE=bookstack|DB_USERNAME=root|DB_PASSWORD=${TEST_MYSQL_PASSWORD}'
+  - CI_DOCKERENV = 'DB_HOST=${TEST_MYSQL_HOST}|DB_DATABASE=bookstack|DB_USERNAME=root|DB_PASSWORD=${TEST_MYSQL_PASSWORD}'
   - CI_AUTH = 'user:password'
   - CI_WEBPATH = ''