diff --git a/packages/world/src/modules/core/implementations/WorldRegistrationSystem.sol b/packages/world/src/modules/core/implementations/WorldRegistrationSystem.sol
index ff71c0603c..bf8ff11ca6 100644
--- a/packages/world/src/modules/core/implementations/WorldRegistrationSystem.sol
+++ b/packages/world/src/modules/core/implementations/WorldRegistrationSystem.sol
@@ -188,7 +188,7 @@ contract WorldRegistrationSystem is System, IWorldErrors {
    */
   function registerRootFunctionSelector(
     ResourceId systemId,
-    string calldata worldFunctionSignature,
+    string memory worldFunctionSignature,
     bytes4 systemFunctionSelector
   ) public returns (bytes4 worldFunctionSelector) {
     // Require the caller to own the root namespace