diff --git a/server/config/index.js b/server/config/index.js
index 79c87f3..011f3d8 100644
--- a/server/config/index.js
+++ b/server/config/index.js
@@ -4,7 +4,7 @@ const config = {
   bcoin_http: 'localhost',
   bcoin: {
     network: 'main',
-    db: 'mem',
+    db: 'leveldb',
     prefix: '.',
     checkpoints: true,
     workers: false,
diff --git a/server/lib/parser/transaction.js b/server/lib/parser/transaction.js
index 6cc1482..43f634f 100644
--- a/server/lib/parser/transaction.js
+++ b/server/lib/parser/transaction.js
@@ -13,7 +13,6 @@ function parse(entry, txs) {
       witnessHash: tx.witnessHash,
       fee: tx.fee,
       rate: tx.rate,
-      size: tx.size,
       ps: tx.ps,
       height: entry.height,
       block: util.revHex(entry.hash),