diff --git a/python/tests/test_basic.py b/python/tests/test_basic.py
index cff49e8..01ea18c 100644
--- a/python/tests/test_basic.py
+++ b/python/tests/test_basic.py
@@ -40,12 +40,15 @@ class Test(unittest.TestCase):
         self.abi = json.load(f)
         f.close()
 
+
         backend = eth_tester.PyEVMBackend(eth_params)
         self.eth_tester =  eth_tester.EthereumTester(backend)
         provider = web3.Web3.EthereumTesterProvider(self.eth_tester)
         self.w3 = web3.Web3(provider)
+        self.sink_address = self.w3.eth.accounts[9]
+
         c = self.w3.eth.contract(abi=self.abi, bytecode=self.bytecode)
-        tx_hash = c.constructor('Foo Token', 'FOO', 6, TAX_LEVEL, PERIOD).transact({'from': self.w3.eth.accounts[0]})
+        tx_hash = c.constructor('Foo Token', 'FOO', 6, TAX_LEVEL, PERIOD, self.sink_address).transact({'from': self.w3.eth.accounts[0]})
 
         r = self.w3.eth.getTransactionReceipt(tx_hash)
         self.contract = self.w3.eth.contract(abi=self.abi, address=r.contractAddress)
diff --git a/solidity/RedistributedDemurrageToken.sol b/solidity/RedistributedDemurrageToken.sol
index a3b09c8..aec9494 100644
--- a/solidity/RedistributedDemurrageToken.sol
+++ b/solidity/RedistributedDemurrageToken.sol
@@ -21,6 +21,8 @@ contract RedistributedDemurrageToken {
 	mapping (address => bool) minter;
 	mapping (address => mapping (address => uint256 ) ) allowance; // holder -> spender -> amount (amount is subject to demurrage)
 
+	address sinkAddress; // receives redistribuion remainders
+
 	event Transfer(address indexed _from, address indexed _to, uint256 _value);
 	event Approval(address indexed _owner, address indexed _spender, uint256 _value);
 	event Mint(address indexed _minter, address indexed _beneficiary, uint256 _value);
@@ -28,7 +30,7 @@ contract RedistributedDemurrageToken {
 	event Taxed(uint256 indexed _period);
 	event Redistribution(address indexed _account, uint256 indexed _period, uint256 _value);
 
-	constructor(string memory _name, string memory _symbol, uint8 _decimals, uint32 _taxLevel, uint256 _period) {
+	constructor(string memory _name, string memory _symbol, uint8 _decimals, uint32 _taxLevel, uint256 _period, address _defaultSinkAddress) {
 		owner = msg.sender;
 		minter[owner] = true;
 		periodStart = block.number;