diff --git a/SDL2pp/Mixer.hh b/SDL2pp/Mixer.hh
index 090cd65..cb2b29b 100644
--- a/SDL2pp/Mixer.hh
+++ b/SDL2pp/Mixer.hh
@@ -42,7 +42,7 @@ class Chunk;
 ////////////////////////////////////////////////////////////
 class Mixer {
 public:
-	typedef void (*ChannelFinishedHandler)(int);
+	typedef void (*ChannelFinishedHandler)(int); ///< Function type for channel finished callback
 
 private:
 	bool open_;