diff --git a/src/blockchain_db/lmdb/db_lmdb.h b/src/blockchain_db/lmdb/db_lmdb.h
index cc1b06ca0..4580573eb 100644
--- a/src/blockchain_db/lmdb/db_lmdb.h
+++ b/src/blockchain_db/lmdb/db_lmdb.h
@@ -166,7 +166,7 @@ struct mdb_txn_safe
 class BlockchainLMDB : public BlockchainDB
 {
 public:
-  BlockchainLMDB(bool batch_transactions=false);
+  BlockchainLMDB(bool batch_transactions=true);
   ~BlockchainLMDB();
 
   virtual void open(const std::string& filename, const int mdb_flags=0);