diff --git a/sys/modules/sound/sound/Makefile b/sys/modules/sound/sound/Makefile
index 4e48c18aae4..04aafbf7836 100644
--- a/sys/modules/sound/sound/Makefile
+++ b/sys/modules/sound/sound/Makefile
@@ -19,13 +19,13 @@ SRCS+=	ac97.c ac97_patch.c buffer.c channel.c clone.c dsp.c
 SRCS+=	mixer.c sndstat.c sound.c unit.c vchan.c
 SRCS+=	midi.c mpu401.c sequencer.c
 
-feeder_eq_gen.h:
+feeder_eq_gen.h:	@ machine
 	${AWK} -f @/tools/feeder_eq_mkfilter.awk -- ${FEEDER_EQ_PRESETS} > ${.TARGET}
 
-feeder_rate_gen.h:
+feeder_rate_gen.h:	@ machine
 	${AWK} -f @/tools/feeder_rate_mkfilter.awk -- ${FEEDER_RATE_PRESETS} > ${.TARGET}
 
-snd_fxdiv_gen.h:
+snd_fxdiv_gen.h:	@ machine
 	${AWK} -f @/tools/snd_fxdiv_gen.awk -- > ${.TARGET}
 
 CLEANFILES+=	feeder_eq_gen.h feeder_rate_gen.h snd_fxdiv_gen.h