diff --git a/bitcore-lib.js b/bitcore-lib.js
index 3014204b9..0d78d13c3 100644
--- a/bitcore-lib.js
+++ b/bitcore-lib.js
@@ -54080,16 +54080,15 @@ var bitcore = module.exports;
 
 // module information
 bitcore.version = 'v' + require('./package.json').version;
-bitcore.versionGuard = function(version) {
-  if (version !== undefined) {
-    var message = 'More than one instance of bitcore-lib found. ' +
-      'Please make sure to require bitcore-lib and check that submodules do' +
-      ' not also include their own bitcore-lib dependency.';
-    throw new Error(message);
+
+if (global._bitcore !== undefind) {
+  if (typeof global._bitcore !== 'object' || global._bitcore.version !== bitcore.version) {
+    throw new Error('Outdated version of bitcore-lib found, ' +
+        'please make sure all dependencies have the same version.');
   }
-};
-bitcore.versionGuard(global._bitcore);
-global._bitcore = bitcore.version;
+  module.exports = global._bitcore;
+  return;
+}
 
 // crypto
 bitcore.crypto = {};
@@ -54144,5 +54143,6 @@ bitcore.deps._ = require('lodash');
 // Internal usage, exposed for testing/advanced tweaking
 bitcore.Transaction.sighash = require('./lib/transaction/sighash');
 
+global._bitcore = bitcore;
 }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer)
 },{"./lib/address":1,"./lib/block":4,"./lib/block/blockheader":3,"./lib/block/merkleblock":5,"./lib/crypto/bn":6,"./lib/crypto/ecdsa":7,"./lib/crypto/hash":8,"./lib/crypto/point":9,"./lib/crypto/random":10,"./lib/crypto/signature":11,"./lib/encoding/base58":12,"./lib/encoding/base58check":13,"./lib/encoding/bufferreader":14,"./lib/encoding/bufferwriter":15,"./lib/encoding/varint":16,"./lib/errors":17,"./lib/hdprivatekey.js":19,"./lib/hdpublickey.js":20,"./lib/networks":21,"./lib/opcode":22,"./lib/privatekey":23,"./lib/publickey":24,"./lib/script":25,"./lib/transaction":28,"./lib/transaction/sighash":36,"./lib/unit":40,"./lib/uri":41,"./lib/util/buffer":42,"./lib/util/js":43,"./lib/util/preconditions":44,"./package.json":320,"bn.js":280,"bs58":281,"buffer":47,"elliptic":285,"lodash":319}]},{},[]);
diff --git a/index.js b/index.js
index eaa6107a4..af199970d 100644
--- a/index.js
+++ b/index.js
@@ -4,16 +4,15 @@ var bitcore = module.exports;
 
 // module information
 bitcore.version = 'v' + require('./package.json').version;
-bitcore.versionGuard = function(version) {
-  if (version !== undefined) {
-    var message = 'More than one instance of bitcore-lib found. ' +
-      'Please make sure to require bitcore-lib and check that submodules do' +
-      ' not also include their own bitcore-lib dependency.';
-    throw new Error(message);
+
+if (global._bitcore !== undefined) {
+  if (typeof global._bitcore !== 'object' || global._bitcore.version !== bitcore.version) {
+    throw new Error('Outdated version of bitcore-lib found, ' +
+        'please make sure all dependencies have the same version.');
   }
-};
-bitcore.versionGuard(global._bitcore);
-global._bitcore = bitcore.version;
+  module.exports = global._bitcore;
+  return;
+}
 
 // crypto
 bitcore.crypto = {};
@@ -67,3 +66,5 @@ bitcore.deps._ = require('lodash');
 
 // Internal usage, exposed for testing/advanced tweaking
 bitcore.Transaction.sighash = require('./lib/transaction/sighash');
+
+global._bitcore = bitcore;
diff --git a/test/index.js b/test/index.js
index 47bad735a..ea64101b3 100644
--- a/test/index.js
+++ b/test/index.js
@@ -5,12 +5,6 @@ var bitcore = require("../");
 
 describe('#versionGuard', function() {
   it('global._bitcore should be defined', function() {
-    should.equal(global._bitcore, bitcore.version);
-  });
-
-  it('throw an error if version is already defined', function() {
-    (function() {
-      bitcore.versionGuard('version');
-    }).should.throw('More than one instance of bitcore');
+    should.equal(global._bitcore, bitcore);
   });
 });