diff --git a/packages/thirdweb/src/constants/addresses.ts b/packages/thirdweb/src/constants/addresses.ts
index c63bfeaea25..5cb547d044b 100644
--- a/packages/thirdweb/src/constants/addresses.ts
+++ b/packages/thirdweb/src/constants/addresses.ts
@@ -1,14 +1,16 @@
+import { getAddress } from "src/utils/address.js";
+
 /**
  * The address of the native token.
  */
 export const NATIVE_TOKEN_ADDRESS =
-  "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee";
+  "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE";
 
 /**
  * @internal
  */
 export function isNativeTokenAddress(address: string) {
-  return address.toLowerCase() === NATIVE_TOKEN_ADDRESS;
+  return getAddress(address) === getAddress(NATIVE_TOKEN_ADDRESS);
 }
 
 /**