diff --git a/apps/popup/src/lib/account-abstraction/account-adapters/to-universal-account.ts b/apps/popup/src/lib/account-abstraction/account-adapters/to-universal-account.ts
index 0b59cefc..aebc9d68 100644
--- a/apps/popup/src/lib/account-abstraction/account-adapters/to-universal-account.ts
+++ b/apps/popup/src/lib/account-abstraction/account-adapters/to-universal-account.ts
@@ -241,17 +241,18 @@ export async function toUniversalAccount(
     },
 
     async signUserOperation(parameters) {
-      const { ...userOperation } = parameters;
+      const { chainId: userOpChainId, ...userOperation } = parameters;
       const address = await this.getAddress();
-      const _chainId = client?.chain?.id;
-      if (typeof _chainId !== 'number' || !isValidChain(_chainId)) {
+      const chainId = userOpChainId ?? client?.chain?.id;
+
+      if (!isValidChain(chainId)) {
         throw new BaseError('Invalid chainId');
       }
       // @ts-ignore
       const packedUserOperationHash = getUserOperationHash(userOperation);
       const packedUserOpTypedHash = getPackedUserOperationTypedDataHash({
         address,
-        chainId: _chainId,
+        chainId,
         packedUserOperationHash,
       });