diff --git a/mk/PX4/ROMFS/init.d/rcS b/mk/PX4/ROMFS/init.d/rcS
index 2c36911f29..d9adae2492 100755
--- a/mk/PX4/ROMFS/init.d/rcS
+++ b/mk/PX4/ROMFS/init.d/rcS
@@ -25,13 +25,6 @@ if mount -t vfat /dev/mmcsd0 /fs/microsd
 then
     echo "[init] card mounted at /fs/microsd"
     set HAVE_MICROSD 1
-    # Start playing the startup tune
-    if [ -f /etc/tones/startup ]
-    then
-        tone_alarm /etc/tones/startup
-    else
-        tone_alarm 1
-    fi
 else
     set HAVE_MICROSD 0
     tone_alarm MNBGG
diff --git a/mk/PX4/ROMFS/init.d/rcS_no_microSD b/mk/PX4/ROMFS/init.d/rcS_no_microSD
index fd083d5c16..8ac04655d3 100644
--- a/mk/PX4/ROMFS/init.d/rcS_no_microSD
+++ b/mk/PX4/ROMFS/init.d/rcS_no_microSD
@@ -3,8 +3,6 @@ set USB autoconnect
 set NSH_ERROR_UART1 /dev/ttyACM0
 set NSH_ERROR_UART2 /dev/ttyS0
 
-tone_alarm /etc/tones/startup
-
 if sercon
 then
     echo "[init] USB interface connected"