diff --git a/src/coro_rpc/examples/base_examples/client.cpp b/src/coro_rpc/examples/base_examples/client.cpp
index 11ae6e72c..9460a2b78 100644
--- a/src/coro_rpc/examples/base_examples/client.cpp
+++ b/src/coro_rpc/examples/base_examples/client.cpp
@@ -64,7 +64,7 @@ Lazy<void> show_rpc_call() {
 
   ret = co_await client.call<return_error>();
 
-  assert(ret.error().value() == 404);
+  assert(ret.error().code == 404);
   assert(ret.error().msg == "404 Not Found.");
 
   ret = co_await client.call<rpc_with_state_by_tag>();