diff --git a/config/.env.example b/config/.env.example
index a2d1fe1..64c96c3 100644
--- a/config/.env.example
+++ b/config/.env.example
@@ -15,10 +15,10 @@ ANKISYNCD_BASE_MEDIA_URL=/msync/
 ANKISYNCD_AUTH_DB_PATH=./auth.db
 ANKISYNCD_SESSION_DB_PATH=./session.db
 
-ANKISYNCD_FULL_SYNC_MANAGER
-ANKISYNCD_SESSION_MANAGER
-ANKISYNCD_USER_MANAGER
-ANKISYNCD_COLLECTION_WRAPPER
+# ANKISYNCD_FULL_SYNC_MANAGER
+# ANKISYNCD_SESSION_MANAGER
+# ANKISYNCD_USER_MANAGER
+# ANKISYNCD_COLLECTION_WRAPPER
 
 ## Mkdocs
 MKDOCS_OPTION=serve