1 files changed, 2 insertions, 3 deletions
diff --git a/src/lib/base/EventQueue.h b/src/lib/base/EventQueue.h
index 97e7fba..0a2179b 100644
--- a/src/lib/base/EventQueue.h
+++ b/src/lib/base/EventQueue.h
@@ -28,10 +28,9 @@
 #include "common/stdset.h"
 #include "base/NonBlockingStream.h"
 
+#include <mutex>
 #include <queue>
 
-class Mutex;
-
 //! Event queue
 /*!
 An event queue that implements the platform independent parts and
@@ -114,7 +113,7 @@ private:
     typedef std::map<void*, TypeHandlerTable> HandlerTable;
 
     int                    m_systemTarget;
-    ArchMutex            m_mutex;
+    mutable std::mutex m_mutex;
 
     // registered events
     Event::Type        m_nextType;