diff --git a/.gitignore b/.gitignore
index ef58a67d8..a98e6dc5f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@ build
 flats
 .node*
 .idea
+coverage
diff --git a/.node-xmlhttprequest-sync-27493 b/.node-xmlhttprequest-sync-27493
deleted file mode 100644
index e69de29bb..000000000
diff --git a/contracts/IOwnedUpgradeabilityProxy.sol b/contracts/IOwnedUpgradeabilityProxy.sol
index 7da3d5c65..53385a170 100644
--- a/contracts/IOwnedUpgradeabilityProxy.sol
+++ b/contracts/IOwnedUpgradeabilityProxy.sol
@@ -2,5 +2,5 @@ pragma solidity 0.4.24;
 
 
 interface IOwnedUpgradeabilityProxy {
-    function proxyOwner() public view returns (address);
+    function upgradeabilityOwner() public view returns (address);
 }
diff --git a/contracts/upgradeability/OwnedUpgradeabilityProxy.sol b/contracts/upgradeability/OwnedUpgradeabilityProxy.sol
index 8fc51a50f..e6d24af22 100644
--- a/contracts/upgradeability/OwnedUpgradeabilityProxy.sol
+++ b/contracts/upgradeability/OwnedUpgradeabilityProxy.sol
@@ -26,26 +26,18 @@ contract OwnedUpgradeabilityProxy is UpgradeabilityOwnerStorage, UpgradeabilityP
     /**
     * @dev Throws if called by any account other than the owner.
     */
-    modifier onlyProxyOwner() {
-        require(msg.sender == proxyOwner());
+    modifier onlyUpgradeabilityOwner() {
+        require(msg.sender == upgradeabilityOwner());
         _;
     }
 
-    /**
-    * @dev Tells the address of the proxy owner
-    * @return the address of the proxy owner
-    */
-    function proxyOwner() public view returns (address) {
-        return upgradeabilityOwner();
-    }
-
     /**
     * @dev Allows the current owner to transfer control of the contract to a newOwner.
     * @param newOwner The address to transfer ownership to.
     */
-    function transferProxyOwnership(address newOwner) public onlyProxyOwner {
+    function transferProxyOwnership(address newOwner) public onlyUpgradeabilityOwner {
         require(newOwner != address(0));
-        emit ProxyOwnershipTransferred(proxyOwner(), newOwner);
+        emit ProxyOwnershipTransferred(upgradeabilityOwner(), newOwner);
         setUpgradeabilityOwner(newOwner);
     }
 
@@ -54,7 +46,7 @@ contract OwnedUpgradeabilityProxy is UpgradeabilityOwnerStorage, UpgradeabilityP
     * @param version representing the version name of the new implementation to be set.
     * @param implementation representing the address of the new implementation to be set.
     */
-    function upgradeTo(uint256 version, address implementation) public onlyProxyOwner {
+    function upgradeTo(uint256 version, address implementation) public onlyUpgradeabilityOwner {
         _upgradeTo(version, implementation);
     }
 
@@ -66,7 +58,7 @@ contract OwnedUpgradeabilityProxy is UpgradeabilityOwnerStorage, UpgradeabilityP
     * @param data represents the msg.data to bet sent in the low level call. This parameter may include the function
     * signature of the implementation to be called with the needed payload
     */
-    function upgradeToAndCall(uint256 version, address implementation, bytes data) payable public onlyProxyOwner {
+    function upgradeToAndCall(uint256 version, address implementation, bytes data) payable public onlyUpgradeabilityOwner {
         upgradeTo(version, implementation);
         require(address(this).call.value(msg.value)(data));
     }
diff --git a/contracts/upgradeability/UpgradeabilityOwnerStorage.sol b/contracts/upgradeability/UpgradeabilityOwnerStorage.sol
index e502e3249..a6a27cf02 100644
--- a/contracts/upgradeability/UpgradeabilityOwnerStorage.sol
+++ b/contracts/upgradeability/UpgradeabilityOwnerStorage.sol
@@ -7,7 +7,7 @@ pragma solidity 0.4.24;
  */
 contract UpgradeabilityOwnerStorage {
     // Owner of the contract
-    address private _upgradeabilityOwner;
+    address internal _upgradeabilityOwner;
 
     /**
     * @dev Tells the address of the owner
diff --git a/contracts/upgradeable_contracts/OwnedUpgradeability.sol b/contracts/upgradeable_contracts/OwnedUpgradeability.sol
index c31b15ed2..165d4a179 100644
--- a/contracts/upgradeable_contracts/OwnedUpgradeability.sol
+++ b/contracts/upgradeable_contracts/OwnedUpgradeability.sol
@@ -4,14 +4,9 @@ import "../IOwnedUpgradeabilityProxy.sol";
 
 
 contract OwnedUpgradeability {
-
-    function upgradeabilityAdmin() public view returns (address) {
-        return IOwnedUpgradeabilityProxy(this).proxyOwner();
-    }
-
     // Avoid using onlyProxyOwner name to prevent issues with implementation from proxy contract
     modifier onlyIfOwnerOfProxy() {
-        require(msg.sender == upgradeabilityAdmin());
+        require(msg.sender == IOwnedUpgradeabilityProxy(this).upgradeabilityOwner());
         _;
     }
 }
diff --git a/test/erc_to_erc/home_bridge.test.js b/test/erc_to_erc/home_bridge.test.js
index ff610fb58..431de9943 100644
--- a/test/erc_to_erc/home_bridge.test.js
+++ b/test/erc_to_erc/home_bridge.test.js
@@ -993,19 +993,6 @@ contract('HomeBridge_ERC20_to_ERC20', async accounts => {
       await homeBridge.fixAssetsAboveLimits(transactionHash, true, { from: owner }).should.be.fulfilled
     })
   })
-  describe('#OwnedUpgradeability', async () => {
-    it('upgradeabilityAdmin should return the proxy owner', async () => {
-      const homeBridgeImpl = await HomeBridge.new()
-      const storageProxy = await EternalStorageProxy.new().should.be.fulfilled
-      await storageProxy.upgradeTo('1', homeBridgeImpl.address).should.be.fulfilled
-      const homeBridge = await HomeBridge.at(storageProxy.address)
-
-      const proxyOwner = await storageProxy.proxyOwner()
-      const upgradeabilityAdmin = await homeBridge.upgradeabilityAdmin()
-
-      upgradeabilityAdmin.should.be.equal(proxyOwner)
-    })
-  })
 
   describe('#rewardableInitialize', async () => {
     let homeFee
diff --git a/test/erc_to_native/home_bridge.test.js b/test/erc_to_native/home_bridge.test.js
index 108ab3a3e..7317a19f1 100644
--- a/test/erc_to_native/home_bridge.test.js
+++ b/test/erc_to_native/home_bridge.test.js
@@ -180,7 +180,6 @@ contract('HomeBridge_ERC20_to_Native', async accounts => {
     it('can be upgraded keeping the state', async () => {
       const homeOwner = accounts[8]
       const storageProxy = await EternalStorageProxy.new().should.be.fulfilled
-      const proxyOwner = await storageProxy.proxyOwner()
       const data = homeContract.contract.methods
         .initialize(
           validatorContract.address,
@@ -205,7 +204,6 @@ contract('HomeBridge_ERC20_to_Native', async accounts => {
       expect(await finalContract.maxPerTx()).to.be.bignumber.equal('2')
       expect(await finalContract.minPerTx()).to.be.bignumber.equal('1')
       expect(await finalContract.blockRewardContract()).to.be.equal(blockRewardContract.address)
-      expect(await finalContract.upgradeabilityAdmin()).to.be.equal(proxyOwner)
 
       const homeContractV2 = await HomeBridge.new()
       await storageProxy.upgradeTo('2', homeContractV2.address).should.be.fulfilled
@@ -217,7 +215,6 @@ contract('HomeBridge_ERC20_to_Native', async accounts => {
       expect(await finalContractV2.maxPerTx()).to.be.bignumber.equal('2')
       expect(await finalContractV2.minPerTx()).to.be.bignumber.equal('1')
       expect(await finalContractV2.blockRewardContract()).to.be.equal(blockRewardContract.address)
-      expect(await finalContractV2.upgradeabilityAdmin()).to.be.equal(proxyOwner)
     })
     it('cant initialize with invalid arguments', async () => {
       false.should.be.equal(await homeContract.isInitialized())
@@ -1380,19 +1377,6 @@ contract('HomeBridge_ERC20_to_Native', async accounts => {
       await homeBridge.fixAssetsAboveLimits(transactionHash, true, { from: owner }).should.be.fulfilled
     })
   })
-  describe('#OwnedUpgradeability', async () => {
-    it('upgradeabilityAdmin should return the proxy owner', async () => {
-      const homeBridgeImpl = await HomeBridge.new()
-      const storageProxy = await EternalStorageProxy.new().should.be.fulfilled
-      await storageProxy.upgradeTo('1', homeBridgeImpl.address).should.be.fulfilled
-      const homeBridge = await HomeBridge.at(storageProxy.address)
-
-      const proxyOwner = await storageProxy.proxyOwner()
-      const upgradeabilityAdmin = await homeBridge.upgradeabilityAdmin()
-
-      upgradeabilityAdmin.should.be.equal(proxyOwner)
-    })
-  })
 
   describe('#feeManager', async () => {
     let homeBridge