diff --git a/packages/zevm-app-contracts/contracts/xp-nft/xpNFT.sol b/packages/zevm-app-contracts/contracts/xp-nft/xpNFT.sol
index 836fa3d..d5729c0 100644
--- a/packages/zevm-app-contracts/contracts/xp-nft/xpNFT.sol
+++ b/packages/zevm-app-contracts/contracts/xp-nft/xpNFT.sol
@@ -39,6 +39,7 @@ contract ZetaXP is ERC721Upgradeable, OwnableUpgradeable {
     event NFTUpdated(address indexed sender, uint256 indexed tokenId, bytes32 tag);
 
     error InvalidSigner();
+    error InvalidAddress();
     error LengthMismatch();
     error TransferNotAllowed();
     error OutdatedSignature();
@@ -51,6 +52,7 @@ contract ZetaXP is ERC721Upgradeable, OwnableUpgradeable {
         address signerAddress_,
         address owner
     ) public initializer {
+        if (signerAddress_ == address(0)) revert InvalidAddress();
         __ERC721_init(name, symbol);
         __Ownable_init();
         transferOwnership(owner);
diff --git a/packages/zevm-app-contracts/scripts/xp-nft/deploy.ts b/packages/zevm-app-contracts/scripts/xp-nft/deploy.ts
index 18574b4..b2115cc 100644
--- a/packages/zevm-app-contracts/scripts/xp-nft/deploy.ts
+++ b/packages/zevm-app-contracts/scripts/xp-nft/deploy.ts
@@ -42,7 +42,7 @@ const deployZetaXP = async () => {
 
   saveAddress("ZetaXP", zetaXP.address, networkName);
 
-  await verifyContract(zetaXP.address, [name, symbol, ZETA_BASE_URL, signer]);
+  await verifyContract(zetaXP.address, [name, symbol, ZETA_BASE_URL, signer, owner]);
   await verifyContract(implementationAddress, []);
 };