diff --git a/hw/audio/fmopl.h b/hw/audio/fmopl.h
index 3df89425ef..1891a22349 100644
--- a/hw/audio/fmopl.h
+++ b/hw/audio/fmopl.h
@@ -10,7 +10,6 @@
 /* compiler dependence */
 #ifndef OSD_CPU_H
 #define OSD_CPU_H
-typedef unsigned short	UINT16;  /* unsigned 16bit */
 typedef unsigned int	UINT32;  /* unsigned 32bit */
 typedef signed char		INT8;    /* signed  8bit   */
 typedef signed short	INT16;   /* signed 16bit   */