diff --git a/packages/thirdweb/src/extensions/prebuilts/get-required-transactions.ts b/packages/thirdweb/src/extensions/prebuilts/get-required-transactions.ts
index 241926c612d..0ae1c6be28e 100644
--- a/packages/thirdweb/src/extensions/prebuilts/get-required-transactions.ts
+++ b/packages/thirdweb/src/extensions/prebuilts/get-required-transactions.ts
@@ -210,6 +210,11 @@ export async function getAllDefaultConstructorParamsForImplementation(args: {
   client: ThirdwebClient;
 }) {
   const { chain, client } = args;
+  const isZkSync = await isZkSyncChain(chain);
+  if (isZkSync) {
+    // zksync contracts dont need these implementation constructor params
+    return {};
+  }
   const [forwarder, weth] = await Promise.all([
     computePublishedContractAddress({
       chain,
diff --git a/packages/thirdweb/src/utils/any-evm/deploy-metadata.ts b/packages/thirdweb/src/utils/any-evm/deploy-metadata.ts
index 7b832ba99e8..365d9b882e0 100644
--- a/packages/thirdweb/src/utils/any-evm/deploy-metadata.ts
+++ b/packages/thirdweb/src/utils/any-evm/deploy-metadata.ts
@@ -80,7 +80,7 @@ export async function fetchBytecodeFromCompilerMetadata(options: {
     async () => {
       const isZksolc = await isZkSyncChain(chain);
       const bytecodeUri = isZksolc
-        ? compilerMetadata.compilers?.zksolc[0]?.bytecodeUri
+        ? compilerMetadata.compilers?.zksolc?.[0]?.bytecodeUri
         : compilerMetadata.bytecodeUri;
 
       if (!bytecodeUri) {