diff --git a/api/env_templates/env.preview.template b/api/env_templates/env.preview.template
index 6b11ae8..ac99b23 100644
--- a/api/env_templates/env.preview.template
+++ b/api/env_templates/env.preview.template
@@ -1,3 +1,5 @@
 AUTH_KEY=/path/to/key/file
 GH_BOT=
-OAI_TOKEN=
\ No newline at end of file
+OAI_TOKEN=
+DOCKER_PRIVATE_REGISTRY_USERNAME=
+DOCKER_PRIVATE_REGISTRY_PASSWORD=
\ No newline at end of file