diff --git a/usr.sbin/bhyve/pci_hda.h b/usr.sbin/bhyve/pci_hda.h
--- a/usr.sbin/bhyve/pci_hda.h
+++ b/usr.sbin/bhyve/pci_hda.h
@@ -46,12 +46,14 @@
 /*
  * HDA Debug Log
  */
-#define DEBUG_HDA			1
 #if DEBUG_HDA == 1
 extern FILE *dbg;
 #define DPRINTF(fmt, arg...)						\
 do {fprintf(dbg, "%s-%d: " fmt "\n", __func__, __LINE__, ##arg);		\
 fflush(dbg); } while (0)
+#ifndef HDA_DEBUG_FILE
+#define HDA_DEBUG_FILE "/tmp/bhyve_hda.log"
+#endif
 #else
 #define DPRINTF(fmt, arg...)
 #endif
diff --git a/usr.sbin/bhyve/pci_hda.c b/usr.sbin/bhyve/pci_hda.c
--- a/usr.sbin/bhyve/pci_hda.c
+++ b/usr.sbin/bhyve/pci_hda.c
@@ -166,7 +166,9 @@
 static int hda_write(struct hda_softc *sc, uint32_t offset, uint8_t size,
     uint32_t value);
 
+#if DEBUG_HDA == 1
 static inline void hda_print_cmd_ctl_data(struct hda_codec_cmd_ctl *p);
+#endif
 static int hda_corb_start(struct hda_softc *sc);
 static int hda_corb_run(struct hda_softc *sc);
 static int hda_rirb_start(struct hda_softc *sc);
@@ -324,7 +326,7 @@
 	int err;
 
 #if DEBUG_HDA == 1
-	dbg = fopen("/tmp/bhyve_hda.log", "w+");
+	dbg = fopen(HDA_DEBUG_FILE, "w+");
 #endif
 
 	sc = calloc(1, sizeof(*sc));
@@ -726,17 +728,17 @@
 	return (0);
 }
 
+#if DEBUG_HDA == 1
 static inline void
 hda_print_cmd_ctl_data(struct hda_codec_cmd_ctl *p)
 {
-#if DEBUG_HDA == 1
 	const char *name = p->name;
-#endif
 	DPRINTF("%s size: %d", name, p->size);
 	DPRINTF("%s dma_vaddr: %p", name, p->dma_vaddr);
 	DPRINTF("%s wp: 0x%x", name, p->wp);
 	DPRINTF("%s rp: 0x%x", name, p->rp);
 }
+#endif
 
 static int
 hda_corb_start(struct hda_softc *sc)
@@ -776,7 +778,9 @@
 
 	corb->run = 1;
 
+#if DEBUG_HDA == 1
 	hda_print_cmd_ctl_data(corb);
+#endif
 
 	return (0);
 }
@@ -847,7 +851,9 @@
 
 	rirb->run = 1;
 
+#if DEBUG_HDA == 1
 	hda_print_cmd_ctl_data(rirb);
+#endif
 
 	return (0);
 }