diff --git a/src/coro_io/tests/test_client_pool.cpp b/src/coro_io/tests/test_client_pool.cpp
index bba91a931..af83ca809 100644
--- a/src/coro_io/tests/test_client_pool.cpp
+++ b/src/coro_io/tests/test_client_pool.cpp
@@ -152,6 +152,7 @@ TEST_CASE("test reconnect") {
 }
 
 struct mock_client : public coro_rpc::coro_rpc_client {
+  using coro_rpc::coro_rpc_client::coro_rpc_client;
   async_simple::coro::Lazy<std::errc> reconnect(const std::string &hostname) {
     auto ec = co_await this->coro_rpc::coro_rpc_client::reconnect(hostname);
     if (ec != std::errc{}) {