diff --git a/.env.dbca b/.env.dbca
index b17148bb..c4786545 100644
--- a/.env.dbca
+++ b/.env.dbca
@@ -81,6 +81,8 @@ CKAN_SERVER_NAME=localhost
 ## ckanext-doi ##
 CKANEXT__DOI__ACCOUNT_NAME=
 CKANEXT__DOI__ACCOUNT_PASSWORD=
+CKANEXT__DOI__PREFIX=
+CKANEXT__DOI__TEST_MODE=True
 
 ## ckanext-spatial ##
 CKANEXT__SPATIAL__COMMON_MAP__APIKEY=