diff --git a/src/add-ons/kernel/drivers/audio/ac97/ich/debug.c b/src/add-ons/kernel/drivers/audio/ac97/ich/debug.c
index ea023c4a21..4d1ae3575a 100644
--- a/src/add-ons/kernel/drivers/audio/ac97/ich/debug.c
+++ b/src/add-ons/kernel/drivers/audio/ac97/ich/debug.c
@@ -33,13 +33,6 @@
 #include "debug.h"
 #include "ich.h"
 
-static const char * logfile="/boot/home/ich_ac97.log";
-static sem_id loglock;
-
-void debug_printf(const char *text,...);
-void log_printf(const char *text,...);
-void log_create();
-
 void debug_printf(const char *text,...)
 {
 	char buf[1024];
@@ -52,20 +45,22 @@ void debug_printf(const char *text,...)
 	dprintf(DRIVER_NAME ": %s",buf);
 }
 
+#if DEBUG > 0
+
+static const char * logfile="/boot/home/ich_ac97.log";
+static sem_id loglock;
+
 void log_create()
 {
-#if DEBUG > 0
 	int fd = open(logfile, O_WRONLY | O_CREAT | O_TRUNC, 0666);
 	const char *text = DRIVER_NAME ", " VERSION "\n";
 	loglock = create_sem(1,"logfile sem");
 	write(fd,text,strlen(text));
 	close(fd);
-#endif
 }
 
 void log_printf(const char *text,...)
 {
-#if DEBUG > 0
 	int fd;
 	char buf[1024];
 	va_list ap;
@@ -85,6 +80,6 @@ void log_printf(const char *text,...)
 	#if DEBUG > 1
 		snooze(150000);
 	#endif
-#endif
 }
 
+#endif
diff --git a/src/add-ons/kernel/drivers/audio/ac97/ich/debug.h b/src/add-ons/kernel/drivers/audio/ac97/ich/debug.h
index 0922b726ca..564ab0acba 100644
--- a/src/add-ons/kernel/drivers/audio/ac97/ich/debug.h
+++ b/src/add-ons/kernel/drivers/audio/ac97/ich/debug.h
@@ -46,6 +46,8 @@
 #undef TRACE
 #undef ASSERT
 
+void debug_printf(const char *text,...);
+
 #if DEBUG > 0
 	#define PRINT(a)		log_printf a
 	#define TRACE(a) 		debug_printf a
@@ -54,7 +56,6 @@
 	#define ASSERT(a)		if (a) {} else LOG(("ASSERT failed! file = %s, line = %d\n",__FILE__,__LINE__))
 	void log_create();
 	void log_printf(const char *text,...);
-	void debug_printf(const char *text,...);
 #else
 	#define PRINT(a)	debug_printf a
 	#define TRACE(a)	((void)(0))