diff --git a/lib/blockchain/index.js b/lib/blockchain/index.js
index f6e35ba8..e8ab9ed7 100644
--- a/lib/blockchain/index.js
+++ b/lib/blockchain/index.js
@@ -1,5 +1,6 @@
 'use strict';
 
+exports.common = require('./common');
 exports.Chain = require('./chain');
 exports.ChainDB = require('./chaindb');
 exports.ChainEntry = require('./chainentry');
diff --git a/lib/env.js b/lib/env.js
index dcbd647f..bbab52ce 100644
--- a/lib/env.js
+++ b/lib/env.js
@@ -196,9 +196,9 @@ function Environment() {
   // Protocol
   this.require('protocol', './protocol');
   this.require('consensus', './protocol/consensus');
-  this.require('policy', './protocol/policy');
   this.require('network', './protocol/network');
   this.require('networks', './protocol/networks');
+  this.require('policy', './protocol/policy');
   this.require('timedata', './protocol/timedata');
 
   // Script
diff --git a/lib/script/index.js b/lib/script/index.js
index 30f777f3..7c12cc5f 100644
--- a/lib/script/index.js
+++ b/lib/script/index.js
@@ -1,6 +1,6 @@
 'use strict';
 
-exports.encoding = require('./encoding');
+exports.common = require('./common');
 exports.Opcode = require('./opcode');
 exports.Program = require('./program');
 exports.Script = require('./script');