diff --git a/lib/db/backends-browser.js b/lib/db/backends-browser.js
index 5920f6ff..457bb04a 100644
--- a/lib/db/backends-browser.js
+++ b/lib/db/backends-browser.js
@@ -7,10 +7,10 @@
 'use strict';
 
 var level = require('./level');
-var MemoryDB = require('./memorydb');
+var MemDB = require('./memdb');
 
 exports.get = function get(name) {
   if (name === 'memory')
-    return MemoryDB;
+    return MemDB;
   return level;
 };
diff --git a/lib/db/backends.js b/lib/db/backends.js
index 32f8f647..a96976c7 100644
--- a/lib/db/backends.js
+++ b/lib/db/backends.js
@@ -8,7 +8,7 @@
 
 exports.get = function get(name) {
   if (name === 'memory')
-    return require('./memorydb');
+    return require('./memdb');
 
   try {
     return require(name);
diff --git a/lib/db/index.js b/lib/db/index.js
index 95ec31bf..b9e99e26 100644
--- a/lib/db/index.js
+++ b/lib/db/index.js
@@ -6,4 +6,4 @@
 
 exports.LDB = require('./ldb');
 exports.LowlevelUp = require('./lowlevelup');
-exports.MemoryDB = require('./memorydb');
+exports.MemDB = require('./memdb');
diff --git a/lib/db/memorydb.js b/lib/db/memdb.js
similarity index 91%
rename from lib/db/memorydb.js
rename to lib/db/memdb.js
index 2f12ce82..9b0495c6 100644
--- a/lib/db/memorydb.js
+++ b/lib/db/memdb.js
@@ -1,5 +1,5 @@
 /*!
- * memorydb.js - in-memory database for bcoin
+ * memdb.js - in-memory database for bcoin
  * Copyright (c) 2016-2017, Christopher Jeffrey (MIT License).
  * https://github.com/bcoin-org/bcoin
  */
@@ -14,16 +14,16 @@ var DUMMY = new Buffer(0);
 /**
  * In memory database for bcoin
  * using a red-black tree backend.
- * @alias module:db.MemoryDB
+ * @alias module:db.MemDB
  * @constructor
  * @param {String?} location - Phony location.
  * @param {Object?} options
  * @param {Function} options.compare - Comparator.
  */
 
-function MemoryDB(location) {
-  if (!(this instanceof MemoryDB))
-    return new MemoryDB(location);
+function MemDB(location) {
+  if (!(this instanceof MemDB))
+    return new MemDB(location);
 
   this.location = location || 'memory';
   this.options = {};
@@ -37,7 +37,7 @@ function MemoryDB(location) {
  * @returns {Buffer?} value
  */
 
-MemoryDB.prototype.search = function search(key) {
+MemDB.prototype.search = function search(key) {
   var node;
 
   if (typeof key === 'string')
@@ -60,7 +60,7 @@ MemoryDB.prototype.search = function search(key) {
  * @param {Buffer} value
  */
 
-MemoryDB.prototype.insert = function insert(key, value) {
+MemDB.prototype.insert = function insert(key, value) {
   if (typeof key === 'string')
     key = new Buffer(key, 'utf8');
 
@@ -83,7 +83,7 @@ MemoryDB.prototype.insert = function insert(key, value) {
  * @returns {Boolean}
  */
 
-MemoryDB.prototype.remove = function remove(key) {
+MemDB.prototype.remove = function remove(key) {
   if (typeof key === 'string')
     key = new Buffer(key, 'utf8');
 
@@ -100,7 +100,7 @@ MemoryDB.prototype.remove = function remove(key) {
  * @returns {RBTData[]} Records.
  */
 
-MemoryDB.prototype.range = function range(min, max) {
+MemDB.prototype.range = function range(min, max) {
   if (typeof min === 'string')
     min = new Buffer(min, 'utf8');
 
@@ -119,7 +119,7 @@ MemoryDB.prototype.range = function range(min, max) {
  * @param {Function} callback
  */
 
-MemoryDB.prototype.open = function open(options, callback) {
+MemDB.prototype.open = function open(options, callback) {
   if (!callback) {
     callback = options;
     options = null;
@@ -138,7 +138,7 @@ MemoryDB.prototype.open = function open(options, callback) {
  * @param {Function} callback
  */
 
-MemoryDB.prototype.close = function close(callback) {
+MemDB.prototype.close = function close(callback) {
   util.nextTick(callback);
 };
 
@@ -149,7 +149,7 @@ MemoryDB.prototype.close = function close(callback) {
  * @param {Function} callback - Returns Bufer.
  */
 
-MemoryDB.prototype.get = function get(key, options, callback) {
+MemDB.prototype.get = function get(key, options, callback) {
   var value, err;
 
   if (!callback) {
@@ -188,7 +188,7 @@ MemoryDB.prototype.get = function get(key, options, callback) {
  * @param {Function} callback
  */
 
-MemoryDB.prototype.put = function put(key, value, options, callback) {
+MemDB.prototype.put = function put(key, value, options, callback) {
   if (!callback) {
     callback = options;
     options = null;
@@ -206,7 +206,7 @@ MemoryDB.prototype.put = function put(key, value, options, callback) {
  * @param {Function} callback
  */
 
-MemoryDB.prototype.del = function del(key, options, callback) {
+MemDB.prototype.del = function del(key, options, callback) {
   if (!callback) {
     callback = options;
     options = null;
@@ -225,7 +225,7 @@ MemoryDB.prototype.del = function del(key, options, callback) {
  * @param {Function} callback
  */
 
-MemoryDB.prototype.batch = function batch(ops, options, callback) {
+MemDB.prototype.batch = function batch(ops, options, callback) {
   var batch;
 
   if (!callback) {
@@ -250,7 +250,7 @@ MemoryDB.prototype.batch = function batch(ops, options, callback) {
  * @returns {Leveldown.Iterator}.
  */
 
-MemoryDB.prototype.iterator = function iterator(options) {
+MemDB.prototype.iterator = function iterator(options) {
   return new Iterator(this, options);
 };
 
@@ -260,7 +260,7 @@ MemoryDB.prototype.iterator = function iterator(options) {
  * @returns {String}
  */
 
-MemoryDB.prototype.getProperty = function getProperty(name) {
+MemDB.prototype.getProperty = function getProperty(name) {
   return '';
 };
 
@@ -271,7 +271,7 @@ MemoryDB.prototype.getProperty = function getProperty(name) {
  * @param {Function} callback - Returns Number.
  */
 
-MemoryDB.prototype.approximateSize = function approximateSize(start, end, callback) {
+MemDB.prototype.approximateSize = function approximateSize(start, end, callback) {
   var items = this.range(start, end);
   var size = 0;
   var i, item;
@@ -293,7 +293,7 @@ MemoryDB.prototype.approximateSize = function approximateSize(start, end, callba
  * @param {Function} callback
  */
 
-MemoryDB.destroy = function destroy(location, callback) {
+MemDB.destroy = function destroy(location, callback) {
   util.nextTick(callback);
 };
 
@@ -303,7 +303,7 @@ MemoryDB.destroy = function destroy(location, callback) {
  * @param {Function} callback
  */
 
-MemoryDB.repair = function repair(location, callback) {
+MemDB.repair = function repair(location, callback) {
   util.nextTick(callback);
 };
 
@@ -312,7 +312,7 @@ MemoryDB.repair = function repair(location, callback) {
  * @constructor
  * @ignore
  * @private
- * @param {MemoryDB} db
+ * @param {MemDB} db
  * @param {Object?} options
  */
 
@@ -564,7 +564,7 @@ Iterator.prototype.seek = function seek(key) {
 
 /**
  * End the iterator. Free up snapshot.
- * @param {FUnction} callback
+ * @param {Function} callback
  */
 
 Iterator.prototype.end = function end(callback) {
@@ -683,4 +683,4 @@ IteratorOptions.prototype.fromOptions = function fromOptions(options) {
  * Expose
  */
 
-module.exports = MemoryDB;
+module.exports = MemDB;