diff --git a/packages/world/ts/getWorldAbi.ts b/packages/world/ts/getWorldAbi.ts
index 0c66f32c20..919471b34a 100644
--- a/packages/world/ts/getWorldAbi.ts
+++ b/packages/world/ts/getWorldAbi.ts
@@ -2,6 +2,7 @@ import { Client, Abi, AbiItem, AbiFunction, Address, getAddress, toFunctionSelec
 import IBaseWorldAbi from "../out/IBaseWorld.sol/IBaseWorld.abi.json";
 import { functionSignatureToAbiItem } from "./functionSignatureToAbiItem";
 import { getFunctions } from "./getFunctions";
+import { isDefined } from "@latticexyz/common/utils";
 
 function isAbiFunction(abiItem: AbiItem): abiItem is AbiFunction {
   return abiItem.type === "function";
@@ -33,9 +34,8 @@ export async function getWorldAbi({
         console.error(error);
       }
     })
-    .filter(
-      (abiItem): abiItem is AbiFunction => !!abiItem && !baseFunctionSelectors.includes(toFunctionSelector(abiItem)),
-    );
+    .filter(isDefined)
+    .filter((abiItem) => !baseFunctionSelectors.includes(toFunctionSelector(abiItem)));
   const abi = [...IBaseWorldAbi, ...worldFunctionsAbi];
 
   return abi;