--- a/portaudio/include/pa_mac_core.h
+++ b/portaudio/include/pa_mac_core.h
@@ -36,6 +36,11 @@
  * they can be incorporated into the canonical version. It is also 
  * requested that these non-binding requests be included along with the 
  * license above.
+ */
+
+/** @file
+ *  @ingroup public_header
+ *  @brief CoreAudio-specific PortAudio API extension header file.
  */
 
 #include <AudioUnit/AudioUnit.h>