diff --git a/01-defender-meta-txs/src/signer.js b/01-defender-meta-txs/src/signer.js
index 59a0873..c0b7d05 100644
--- a/01-defender-meta-txs/src/signer.js
+++ b/01-defender-meta-txs/src/signer.js
@@ -40,11 +40,7 @@ async function signTypedData(signer, from, data) {
   }
 
   // Otherwise, send the signTypedData RPC call
-  // Note that hardhatvm and metamask require different EIP712 input
-  const isHardhat = data.domain.chainId == 31337;
-  const [method, argData] = isHardhat
-    ? ['eth_signTypedData', data]
-    : ['eth_signTypedData_v4', JSON.stringify(data)]
+  const [method, argData] = ['eth_signTypedData_v4', JSON.stringify(data)];
   return await signer.send(method, [from, argData]);
 }