diff --git a/lib/crypto/siphash.js b/lib/crypto/siphash.js
index 433de697..35afe6ce 100644
--- a/lib/crypto/siphash.js
+++ b/lib/crypto/siphash.js
@@ -83,7 +83,7 @@ function siphash24(data, key, shift) {
   v0.ixor(v2);
   v0.ixor(v3);
 
-  return v0.toRaw();
+  return v0;
 }
 
 function sipround(v0, v1, v2, v3) {
@@ -215,8 +215,8 @@ U64.prototype.irotl = function irotl(bits) {
 
 U64.prototype.toRaw = function toRaw() {
   var data = Buffer.allocUnsafe(8);
-  data.writeUInt32LE(this.hi >>> 0, 4, true);
   data.writeUInt32LE(this.lo >>> 0, 0, true);
+  data.writeUInt32LE(this.hi >>> 0, 4, true);
   return data;
 };
 
@@ -226,8 +226,8 @@ U64.fromRaw = function fromRaw(data, off) {
   if (!off)
     off = 0;
 
-  hi = data.readUInt32LE(off + 4, true);
   lo = data.readUInt32LE(off, true);
+  hi = data.readUInt32LE(off + 4, true);
 
   return new U64(hi, lo);
 };
@@ -236,7 +236,7 @@ U64.fromRaw = function fromRaw(data, off) {
  * Expose
  */
 
-exports = siphash256;
+exports = siphash;
 exports.siphash = siphash;
 exports.siphash256 = siphash256;
 exports.U64 = U64;
diff --git a/lib/net/bip152.js b/lib/net/bip152.js
index e95cba05..b9a8de27 100644
--- a/lib/net/bip152.js
+++ b/lib/net/bip152.js
@@ -18,7 +18,7 @@ var StaticWriter = require('../utils/staticwriter');
 var encoding = require('../utils/encoding');
 var consensus = require('../protocol/consensus');
 var crypto = require('../crypto/crypto');
-var siphash = require('../crypto/siphash');
+var siphash256 = require('../crypto/siphash').siphash256;
 var AbstractBlock = require('../primitives/abstractblock');
 var TX = require('../primitives/tx');
 var Headers = require('../primitives/headers');
@@ -387,10 +387,10 @@ CompactBlock.prototype.sid = function sid(hash) {
   if (typeof hash === 'string')
     hash = Buffer.from(hash, 'hex');
 
-  hash = siphash(hash, this.sipKey);
+  hash = siphash256(hash, this.sipKey);
 
-  lo = hash.readUInt32LE(0, true);
-  hi = hash.readUInt16LE(4, true);
+  lo = hash.lo >>> 0;
+  hi = hash.hi & 0xffff;
 
   return hi * 0x100000000 + lo;
 };
diff --git a/package.json b/package.json
index 6f21a376..8b0c7604 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "hmac-drbg": "^1.0.0"
   },
   "optionalDependencies": {
-    "bcoin-native": "0.0.17",
+    "bcoin-native": "0.0.18",
     "leveldown": "1.7.0-0",
     "secp256k1": "3.2.5",
     "socket.io": "2.0.1",
diff --git a/test/siphash-test.js b/test/siphash-test.js
index c0640128..f7ce660f 100644
--- a/test/siphash-test.js
+++ b/test/siphash-test.js
@@ -2,14 +2,22 @@
 
 var assert = require('assert');
 var siphash = require('../lib/crypto/siphash');
+var siphash256 = siphash.siphash256;
 var U64 = siphash.U64;
 
+function toRaw(num) {
+  var data = Buffer.allocUnsafe(8);
+  data.writeUInt32LE(num.lo >>> 0, 0, true);
+  data.writeUInt32LE(num.hi >>> 0, 4, true);
+  return data;
+};
+
 describe('SipHash', function() {
   it('should perform siphash with no data', function() {
     var k0 = U64(0x07060504, 0x03020100).toRaw();
     var k1 = U64(0x0f0e0d0c, 0x0b0a0908).toRaw();
     var key = Buffer.concat([k0, k1]);
-    assert.equal(siphash(Buffer.alloc(0), key).toString('hex'), '310e0edd47db6f72');
+    assert.equal(toRaw(siphash256(Buffer.alloc(0), key)).toString('hex'), '310e0edd47db6f72');
   });
 
   it('should perform siphash with data', function() {
@@ -17,7 +25,7 @@ describe('SipHash', function() {
     var k1 = U64(0x0f0e0d0c, 0x0b0a0908).toRaw();
     var data = U64(0x07060504, 0x03020100).toRaw();
     var key = Buffer.concat([k0, k1]);
-    assert.equal(siphash(data, key).toString('hex'), '6224939a79f5f593');
+    assert.equal(toRaw(siphash256(data, key)).toString('hex'), '6224939a79f5f593');
   });
 
   it('should perform siphash with uint256', function() {
@@ -25,6 +33,6 @@ describe('SipHash', function() {
     var k1 = U64(0x0f0e0d0c, 0x0b0a0908).toRaw();
     var hash = Buffer.from('000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f', 'hex');
     var key = Buffer.concat([k0, k1]);
-    assert.equal(siphash(hash, key).toString('hex'), 'ce7cf2722f512771');
+    assert.equal(toRaw(siphash256(hash, key)).toString('hex'), 'ce7cf2722f512771');
   });
 });