diff --git a/src/corelib/thread/qsemaphore.h b/src/corelib/thread/qsemaphore.h
index 28f3f626649..dda722a5823 100644
--- a/src/corelib/thread/qsemaphore.h
+++ b/src/corelib/thread/qsemaphore.h
@@ -7,6 +7,8 @@
 #include <QtCore/qglobal.h>
 #include <QtCore/qdeadlinetimer.h>
 
+#include <chrono>
+
 QT_REQUIRE_CONFIG(thread);
 
 QT_BEGIN_NAMESPACE