diff --git a/contracts/modules/ModuleRegistry.sol b/contracts/modules/ModuleRegistry.sol
index 9481757..6b5041a 100644
--- a/contracts/modules/ModuleRegistry.sol
+++ b/contracts/modules/ModuleRegistry.sol
@@ -63,7 +63,7 @@ contract ModuleRegistry is IModuleRegistry, AccessControlled, Multicall {
     }
 
     // Returns true if the provided address is a module.
-    function isModule(string calldata moduleKey, address caller_) external view returns (bool) {
+    function isModule(string calldata moduleKey_, address caller_) external view returns (bool) {
         return address(_protocolModules[moduleKey]) == caller_;
     }