diff --git a/app/[locale]/address/[addressOrName]/page.tsx b/app/[locale]/address/[addressOrName]/page.tsx
index 0c90f0cf6..b5dbdb0d4 100644
--- a/app/[locale]/address/[addressOrName]/page.tsx
+++ b/app/[locale]/address/[addressOrName]/page.tsx
@@ -1,6 +1,6 @@
 import AllowanceDashboard from 'components/allowances/dashboard/AllowanceDashboard';
 import { isNullish } from 'lib/utils';
-import { getChainName } from 'lib/utils/chains';
+import { getChainName, isSupportedChain } from 'lib/utils/chains';
 import { shortenAddress } from 'lib/utils/formatting';
 import { getAddressAndDomainName } from 'lib/utils/whois';
 import type { Metadata, NextPage } from 'next';
@@ -25,7 +25,9 @@ export const generateMetadata = async ({
   const { address, domainName } = await getAddressAndDomainName(addressOrName);
   const addressDisplay = domainName ?? shortenAddress(address);
 
-  const chainName = getChainName(Number(searchParams.chainId || 1));
+  const chainIdFromSearchParams = Number(searchParams.chainId || 1);
+  const chainId = isSupportedChain(chainIdFromSearchParams) ? chainIdFromSearchParams : 1;
+  const chainName = getChainName(chainId);
 
   const title = isNullish(searchParams.chainId)
     ? t('address.meta.title', { addressDisplay })
diff --git a/lib/hooks/page-context/AddressPageContext.tsx b/lib/hooks/page-context/AddressPageContext.tsx
index d4af96cce..4ad8a4c7c 100644
--- a/lib/hooks/page-context/AddressPageContext.tsx
+++ b/lib/hooks/page-context/AddressPageContext.tsx
@@ -45,7 +45,7 @@ export const AddressPageContextProvider = ({ children, address, domainName, init
   const queryChainId = Number.parseInt(searchParams.get('chainId') as string);
   const defaultChainId = [initialChainId, queryChainId, chain?.id, 1]
     .filter((chainId) => !isNullish(chainId))
-    .find((chainId) => isSupportedChain(chainId!)) as number;
+    .find((chainId) => isSupportedChain(chainId)) as number;
   const [selectedChainId, selectChain] = useState<number>(defaultChainId);
 
   // Note: We use useLayoutEffect here, because this is the only setup that works with the "spenderSearch" query param as well