diff --git a/lib/chain/chaindb.js b/lib/chain/chaindb.js
index 1290f8ce..13c5f987 100644
--- a/lib/chain/chaindb.js
+++ b/lib/chain/chaindb.js
@@ -196,7 +196,7 @@ function ChainDB(chain) {
   // We want to keep the last 5 blocks of unspents in memory.
   this.coinWindow = 25 << 20;
 
-  this.coinCache = new LRU.nil();
+  this.coinCache = new LRU.Nil();
   this.cacheHash = new LRU(this.cacheWindow);
   this.cacheHeight = new LRU(this.cacheWindow);
 
diff --git a/lib/mempool/mempool.js b/lib/mempool/mempool.js
index 1cb58a7e..0a1c4f8f 100644
--- a/lib/mempool/mempool.js
+++ b/lib/mempool/mempool.js
@@ -91,7 +91,7 @@ function Mempool(options) {
   this.coinIndex = new AddressIndex(this);
   this.txIndex = new AddressIndex(this);
 
-  this.rejects = new Bloom.rolling(120000, 0.000001);
+  this.rejects = new Bloom.Rolling(120000, 0.000001);
 
   this.freeCount = 0;
   this.lastTime = 0;
diff --git a/lib/net/peer.js b/lib/net/peer.js
index 0c8a8421..78585adf 100644
--- a/lib/net/peer.js
+++ b/lib/net/peer.js
@@ -99,8 +99,8 @@ function Peer(pool, addr, socket) {
   this.spvFilter = null;
   this.relay = true;
   this.feeRate = -1;
-  this.addrFilter = new Bloom.rolling(5000, 0.001);
-  this.invFilter = new Bloom.rolling(50000, 0.000001);
+  this.addrFilter = new Bloom.Rolling(5000, 0.001);
+  this.invFilter = new Bloom.Rolling(50000, 0.000001);
   this.lastBlock = null;
   this.waiting = 0;
   this.syncSent = false;
diff --git a/lib/net/pool.js b/lib/net/pool.js
index 9a10d96e..b20242f6 100644
--- a/lib/net/pool.js
+++ b/lib/net/pool.js
@@ -233,7 +233,7 @@ Pool.prototype._initOptions = function _initOptions() {
     this.spvFilter = Bloom.fromRate(10000, 0.001, constants.bloom.NONE);
 
   if (!this.options.mempool)
-    this.txFilter = new Bloom.rolling(50000, 0.000001);
+    this.txFilter = new Bloom.Rolling(50000, 0.000001);
 
   if (this.options.requestTimeout != null)
     this.requestTimeout = this.options.requestTimeout;
diff --git a/lib/utils/bloom.js b/lib/utils/bloom.js
index b225ad7f..d36627f8 100644
--- a/lib/utils/bloom.js
+++ b/lib/utils/bloom.js
@@ -374,6 +374,6 @@ function write(data, value, off) {
 
 exports = Bloom;
 exports.murmur3 = murmur3;
-exports.rolling = RollingFilter;
+exports.Rolling = RollingFilter;
 
 module.exports = exports;
diff --git a/lib/utils/locker.js b/lib/utils/locker.js
index 9f5e2fcb..c65c9f1b 100644
--- a/lib/utils/locker.js
+++ b/lib/utils/locker.js
@@ -265,6 +265,6 @@ MappedLock.prototype.destroy = function destroy() {
  */
 
 exports = Locker;
-exports.mapped = MappedLock;
+exports.Mapped = MappedLock;
 
 module.exports = exports;
diff --git a/lib/utils/lru.js b/lib/utils/lru.js
index 55ea9984..82065f74 100644
--- a/lib/utils/lru.js
+++ b/lib/utils/lru.js
@@ -361,6 +361,6 @@ NullCache.prototype.toArray = function toArray(key) { return []; };
  * Expose
  */
 
-LRU.nil = NullCache;
+LRU.Nil = NullCache;
 
 module.exports = LRU;
diff --git a/lib/wallet/walletdb.js b/lib/wallet/walletdb.js
index 5fe559ad..cb5ba1db 100644
--- a/lib/wallet/walletdb.js
+++ b/lib/wallet/walletdb.js
@@ -152,7 +152,7 @@ function WalletDB(options) {
 
   // We need one read lock for `get` and `create`.
   // It will hold locks specific to wallet ids.
-  this.readLock = new Locker.mapped();
+  this.readLock = new Locker.Mapped();
   this.writeLock = new Locker();
   this.txLock = new Locker();
 
diff --git a/test/bloom-test.js b/test/bloom-test.js
index 679862b8..b5136ba6 100644
--- a/test/bloom-test.js
+++ b/test/bloom-test.js
@@ -89,7 +89,7 @@ describe('Bloom', function() {
   });
 
   it('should handle 1m ops with rolling filter', function() {
-    var filter = new bcoin.bloom.rolling(210000, 0.00001);
+    var filter = new bcoin.bloom.Rolling(210000, 0.00001);
     filter.tweak = 0xdeadbeef;
     // ~1m operations
     for (var i = 0; i < 1000; i++) {
@@ -105,7 +105,7 @@ describe('Bloom', function() {
   });
 
   it('should handle rolling generations', function() {
-    var filter = new bcoin.bloom.rolling(50, 0.00001);
+    var filter = new bcoin.bloom.Rolling(50, 0.00001);
     filter.tweak = 0xdeadbeee;
     for (var i = 0; i < 25; i++) {
       var str = 'foobar' + i;