diff --git a/test/io_service_fixture.hpp b/test/io_service_fixture.hpp
index 05f7fb0b..9552ebeb 100644
--- a/test/io_service_fixture.hpp
+++ b/test/io_service_fixture.hpp
@@ -25,7 +25,10 @@ struct io_service_fixture
 		m_ioThreads.reserve(threadCount);
 		try
 		{
-			m_ioThreads.emplace_back([this] { m_ioService.process_events(); });
+			for (std::uint32_t i = 0; i < threadCount; ++i)
+			{
+				m_ioThreads.emplace_back([this] { m_ioService.process_events(); });
+			}
 		}
 		catch (...)
 		{