diff --git a/tests/peerdiscoverytester.cpp b/tests/peerdiscoverytester.cpp
index 7a5aaedf..726ce66e 100644
--- a/tests/peerdiscoverytester.cpp
+++ b/tests/peerdiscoverytester.cpp
@@ -20,6 +20,9 @@
 #include "peerdiscoverytester.h"
 #include "opendht/value.h"
 
+#include <mutex>
+#include <condition_variable>
+
 namespace test {
 
 constexpr unsigned MULTICAST_PORT = 2222;