diff --git a/src/api/extension/index.js b/src/api/extension/index.js
index 2eb11d0e..3a530e67 100644
--- a/src/api/extension/index.js
+++ b/src/api/extension/index.js
@@ -678,6 +678,7 @@ export const bytesAddressToBinary = (bytes) =>
 export const isValidAddress = async (address) => {
   const network = await getNetwork();
   const addr = Cardano.Address.fromString(address)
+  if (!addr) return false;
   if (
       (addr.getNetworkId() === 1 && network.id === NETWORK_ID.mainnet) ||
       (addr.getNetworkId() === 0 &&