diff --git a/lib/blockchain/chaindb.js b/lib/blockchain/chaindb.js
index 973bc5b6..da1139de 100644
--- a/lib/blockchain/chaindb.js
+++ b/lib/blockchain/chaindb.js
@@ -881,7 +881,7 @@ class ChainDB {
    * @returns {Promise}
    */
 
-  getHashes(start = -1, end = -1) {
+  async getHashes(start = -1, end = -1) {
     if (start === -1)
       start = 0;
 
@@ -903,7 +903,7 @@ class ChainDB {
    * @returns {Promise} - Returns {@link ChainEntry}[].
    */
 
-  getEntries() {
+  async getEntries() {
     return this.db.values({
       gte: layout.e.min(),
       lte: layout.e.max(),
@@ -916,7 +916,7 @@ class ChainDB {
    * @returns {Promise} - Returns {@link Hash}[].
    */
 
-  getTips() {
+  async getTips() {
     return this.db.keys({
       gte: layout.p.min(),
       lte: layout.p.max(),
@@ -1178,7 +1178,7 @@ class ChainDB {
         gte: layout.C.min(hash),
         lte: layout.C.max(hash),
         parse: (key) => {
-          const [, txid, index] = layout.C.parse(hash);
+          const [, txid, index] = layout.C.parse(key);
           return [txid, index];
         }
       });
@@ -1212,8 +1212,8 @@ class ChainDB {
         gte: layout.T.min(hash),
         lte: layout.T.max(hash),
         parse: (key) => {
-          const [, hash] = layout.T.parse(key);
-          hashes[hash] = true;
+          const [, txid] = layout.T.parse(key);
+          hashes[txid] = true;
         }
       });
     }
@@ -1251,15 +1251,15 @@ class ChainDB {
       addrs = [addrs];
 
     const hashes = await this.getHashesByAddress(addrs);
-    const txs = [];
+    const mtxs = [];
 
     for (const hash of hashes) {
-      const tx = await this.getMeta(hash);
-      assert(tx);
-      txs.push(tx);
+      const mtx = await this.getMeta(hash);
+      assert(mtx);
+      mtxs.push(mtx);
     }
 
-    return txs;
+    return mtxs;
   }
 
   /**
@@ -2064,6 +2064,7 @@ class ChainFlags {
 
   toRaw() {
     const bw = bio.write(12);
+
     let flags = 0;
 
     if (this.spv)
diff --git a/migrate/chaindb3to4.js b/migrate/chaindb3to4.js
index 3712a672..d5085ab0 100644
--- a/migrate/chaindb3to4.js
+++ b/migrate/chaindb3to4.js
@@ -15,6 +15,7 @@ let parent = null;
 
 const db = bdb.create({
   location: process.argv[2],
+  memory: false,
   compression: true,
   cacheSize: 32 << 20,
   createIfMissing: false
diff --git a/migrate/walletdb6to7.js b/migrate/walletdb6to7.js
index 2c19b3fd..c2a80cae 100644
--- a/migrate/walletdb6to7.js
+++ b/migrate/walletdb6to7.js
@@ -30,6 +30,7 @@ assert(process.argv.length > 2, 'Please pass in a database path.');
 
 const db = bdb.create({
   location: process.argv[2],
+  memory: false,
   compression: true,
   cacheSize: 32 << 20,
   createIfMissing: false