diff --git a/examples/common/pigweed/rpc_services/Device.h b/examples/common/pigweed/rpc_services/Device.h
index 1427d48d391431..e82095a59a309e 100644
--- a/examples/common/pigweed/rpc_services/Device.h
+++ b/examples/common/pigweed/rpc_services/Device.h
@@ -372,7 +372,7 @@ class Device : public pw_rpc::nanopb::Device::Service<Device>
         if (DeviceLayer::GetDeviceInstanceInfoProvider()->GetSerialNumber(response.serial_number, sizeof(response.serial_number)) !=
             CHIP_NO_ERROR)
         {
-            return pw::Status::Internal();
+            response.serial_number[0] = '\0'; // optional serial field not set.
         }
 
         // Create buffer for QR code that can fit max size and null terminator.