diff --git a/packages/account-sdk/src/sign/base-account/utils/findOwnerIndex.ts b/packages/account-sdk/src/sign/base-account/utils/findOwnerIndex.ts
index 67b6f441..6d2acc36 100644
--- a/packages/account-sdk/src/sign/base-account/utils/findOwnerIndex.ts
+++ b/packages/account-sdk/src/sign/base-account/utils/findOwnerIndex.ts
@@ -40,7 +40,7 @@ export async function findOwnerIndex({
   // Check index of owner in the factoryData
   // Note: importing an undeployed contract might need to be handled differently
   // The implemention will likely require the signer to tell us the index
-  if (!code && factory && factoryData) {
+  if ((code === '0x' || code == null) && factory && factoryData) {
     const initData = decodeFunctionData({
       abi: factoryAbi,
       data: factoryData,