diff --git a/src/core/Mixer.cpp b/src/core/Mixer.cpp
index b853c9d80..d922f63d0 100644
--- a/src/core/Mixer.cpp
+++ b/src/core/Mixer.cpp
@@ -164,6 +164,11 @@ public:
 
 	void processJobQueue();
 
+	int workerNum() const
+	{
+		return m_workerNum;
+	}
+
 
 private:
 	virtual void run()