diff --git a/.env.example b/.env.example
index ca235d5..be45312 100644
--- a/.env.example
+++ b/.env.example
@@ -6,8 +6,6 @@ RELAY_URL="wss://wot.utxo.one"
 
 # where we should store the database
 DB_PATH="db"
-# what engine to use for the database: lmdb, badger
-DB_ENGINE="lmdb"
 
 # where we should store the index.html and static files
 INDEX_PATH="templates/index.html"