Index: include/Mapper_OSS.h
@@ -4,7 +4,7 @@
 #undef MIDI_PITCH_BEND
 #endif
 
-#ifdef SYSTEM_FREEBSD || defined (__FreeBSD__)
+#if defined(SYSTEM_FREEBSD) || defined (__FreeBSD__)
 #include <machine/soundcard.h>
 #elif SYSTEM_OSS
 #include <sys/soundcard.h>