1 files changed, 3 insertions, 2 deletions
diff --git a/examples/multicoin/mc_test.sol b/examples/multicoin/mc_test.sol
index 031cba0..a7d468e 100644
--- a/examples/multicoin/mc_test.sol
+++ b/examples/multicoin/mc_test.sol
@@ -2,16 +2,17 @@ pragma solidity >=0.6.0;
 
 contract MCTest {
     address constant MultiCoin = 0x0100000000000000000000000000000000000000;
+    uint256 balance;
     constructor() public {
         // enable multi-coin functionality (it is disabled by default)
         (bool success,) = MultiCoin.delegatecall(abi.encodeWithSignature("enableMultiCoin()"));
         require(success);
     }
 
-    function getBalance(uint256 coinid) public returns (uint256) {
+    function updateBalance(uint256 coinid) public {
         (bool success, bytes memory data) = MultiCoin.delegatecall(abi.encodeWithSignature("getBalance(uint256)", coinid));
         require(success);
-        return abi.decode(data, (uint256));
+        balance = abi.decode(data, (uint256));
     }
 
     function deposit() public payable {}