diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05934e3..3f11ac0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@ Note: Breaking changes between versions are indicated by "💥".
 
 ## Unreleased
 - [Bugfix] Remove trailing slashes in docker-compose files for [compatibility with docker-compose v2 in WSL](https://github.com/docker/compose/issues/8558).
+- [Improvement] `settheme` now works with preview domain.
 
 ## v12.1.7 (2021-11-18)
 
diff --git a/tutor/jobs.py b/tutor/jobs.py
index b8afa07..c3bc3da 100644
--- a/tutor/jobs.py
+++ b/tutor/jobs.py
@@ -148,4 +148,6 @@ def get_all_openedx_domains(config: Config) -> List[str]:
         get_typed(config, "LMS_HOST", str) + ":8000",
         get_typed(config, "CMS_HOST", str),
         get_typed(config, "CMS_HOST", str) + ":8001",
+        get_typed(config, "PREVIEW_LMS_HOST", str),
+        get_typed(config, "PREVIEW_LMS_HOST", str) + ":8000",
     ]