diff --git a/tests/threadpooltester.cpp b/tests/threadpooltester.cpp
index be948f9..4a5199f 100644
--- a/tests/threadpooltester.cpp
+++ b/tests/threadpooltester.cpp
@@ -21,6 +21,7 @@
 
 #include "opendht/thread_pool.h"
 #include <atomic>
+#include <thread>
 
 namespace test {
 CPPUNIT_TEST_SUITE_REGISTRATION(ThreadPoolTester);