diff --git a/src/modules/commander/commander_helper.cpp b/src/modules/commander/commander_helper.cpp
index 7feace2b4b..017499cb51 100644
--- a/src/modules/commander/commander_helper.cpp
+++ b/src/modules/commander/commander_helper.cpp
@@ -82,7 +82,7 @@ static int buzzer;
 
 int buzzer_init()
 {
-	buzzer = open("/dev/tone_alarm", O_WRONLY);
+	buzzer = open(TONEALARM_DEVICE_PATH, O_WRONLY);
 
 	if (buzzer < 0) {
 		warnx("Buzzer: open fail\n");
diff --git a/src/systemcmds/preflight_check/preflight_check.c b/src/systemcmds/preflight_check/preflight_check.c
index f5bd01ce8c..e9c5f1a2cf 100644
--- a/src/systemcmds/preflight_check/preflight_check.c
+++ b/src/systemcmds/preflight_check/preflight_check.c
@@ -163,7 +163,7 @@ system_eval:
 		warnx("PREFLIGHT CHECK ERROR! TRIGGERING ALARM");
 		fflush(stderr);
 
-		int buzzer = open("/dev/tone_alarm", O_WRONLY);
+		int buzzer = open(TONEALARM_DEVICE_PATH, O_WRONLY);
 		int leds = open(LED_DEVICE_PATH, 0);
 
 		if (leds < 0) {
diff --git a/src/systemcmds/tests/test_hrt.c b/src/systemcmds/tests/test_hrt.c
index ba6b86adba..5690997a95 100644
--- a/src/systemcmds/tests/test_hrt.c
+++ b/src/systemcmds/tests/test_hrt.c
@@ -124,10 +124,10 @@ int test_tone(int argc, char *argv[])
 	int fd, result;
 	unsigned long tone;
 
-	fd = open("/dev/tone_alarm", O_WRONLY);
+	fd = open(TONEALARM_DEVICE_PATH, O_WRONLY);
 
 	if (fd < 0) {
-		printf("failed opening /dev/tone_alarm\n");
+		printf("failed opening " TONEALARM_DEVICE_PATH "\n");
 		goto out;
 	}