diff --git a/solidity/contracts/examples/modules/access/WhitelistAccessModule.sol b/solidity/contracts/examples/modules/access/WhitelistAccessModule.sol
index edb8564..d2cd181 100644
--- a/solidity/contracts/examples/modules/access/WhitelistAccessModule.sol
+++ b/solidity/contracts/examples/modules/access/WhitelistAccessModule.sol
@@ -17,7 +17,7 @@ contract WhitelistAccessModule is Module, IWhitelistAccessModule {
 
   /// @inheritdoc IModule
   function moduleName() external pure returns (string memory _moduleName) {
-    return 'WhitelistAccessModule';
+    _moduleName = 'WhitelistAccessModule';
   }
 
   /// @inheritdoc IAccessModule