diff --git a/ui/pages/confirmations/hooks/useGasFeeInputs.js b/ui/pages/confirmations/hooks/useGasFeeInputs.js
index 451e40d9d700..af10ea3bebcb 100644
--- a/ui/pages/confirmations/hooks/useGasFeeInputs.js
+++ b/ui/pages/confirmations/hooks/useGasFeeInputs.js
@@ -124,8 +124,8 @@ export function useGasFeeInputs(
   );
 
   const networkClientId =
-    network?.rpcEndpoints?.[network?.defaultRpcEndpointIndex].networkClientId ??
-    transaction?.networkClientId;
+    network?.rpcEndpoints?.[network?.defaultRpcEndpointIndex]
+      ?.networkClientId ?? transaction?.networkClientId;
 
   const supportsEIP1559 =
     useSelector(checkNetworkAndAccountSupports1559) &&