diff --git a/sys/i386/isa/snd/sound.h b/sys/i386/isa/snd/sound.h
index 00e15ed713ac..1a3aeda9b92e 100644
--- a/sys/i386/isa/snd/sound.h
+++ b/sys/i386/isa/snd/sound.h
@@ -423,12 +423,6 @@ int pcmattach(struct isa_device * dev);
 int midiattach(struct isa_device * dev);
 int synthattach(struct isa_device * dev);
 
-/*
- * functions in isa.c
- */
-
-int isa_dmastatus(int chan);
-int isa_dmastop(int chan);
 /*
  *      DMA buffer calls
  */