diff --git a/Telegram/SourceFiles/platform/mac/file_bookmark_mac.mm b/Telegram/SourceFiles/platform/mac/file_bookmark_mac.mm
index 337055443..9e9a1744b 100644
--- a/Telegram/SourceFiles/platform/mac/file_bookmark_mac.mm
+++ b/Telegram/SourceFiles/platform/mac/file_bookmark_mac.mm
@@ -10,6 +10,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/platform/mac/base_utilities_mac.h"
 #include "logs.h"
 
+#include <QtCore/QMutex>
+
 #include <Cocoa/Cocoa.h>
 #include <CoreFoundation/CFURL.h>