diff --git a/src/lib/tunes/tune_definition.desc b/src/lib/tunes/tune_definition.desc
index 493106f94c..e52995a793 100644
--- a/src/lib/tunes/tune_definition.desc
+++ b/src/lib/tunes/tune_definition.desc
@@ -94,8 +94,8 @@ PX4_DEFINE_TUNE(3,  NOTIFY_POSITIVE,       "MFT200e8a8a",
 PX4_DEFINE_TUNE(4,  NOTIFY_NEUTRAL,        "MFT200e8e",                                     true  /*  Notify Neutral tone */)
 PX4_DEFINE_TUNE(5,  NOTIFY_NEGATIVE,       "MFT200e8c8e8c8e8c8",                            true  /*  Notify Negative tone */)
 PX4_DEFINE_TUNE(6,  ARMING_WARNING,        "MNT75L1O2G",                                    false /*  arming warning */)
-PX4_DEFINE_TUNE(7,  BATTERY_WARNING_SLOW,  "MBNT100a8",                                     true  /*  battery warning slow */)
-PX4_DEFINE_TUNE(8,  BATTERY_WARNING_FAST,  "MBNT255a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8",       true  /*  battery warning fast */)
+PX4_DEFINE_TUNE(7,  BATTERY_WARNING_SLOW,  "MBT100a8P",                                     true  /*  battery warning slow */)
+PX4_DEFINE_TUNE(8,  BATTERY_WARNING_FAST,  "MBT255a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8P",       true  /*  battery warning fast */)
 PX4_DEFINE_TUNE(9,  GPS_WARNING,           "MFT255L4AAAL1F#",                               false /*  gps warning slow */)
 PX4_DEFINE_TUNE(10, ARMING_FAILURE,        "MFT255L4<<<BAP",                                false /*  arming failure tune */)
 PX4_DEFINE_TUNE(11, PARACHUTE_RELEASE,     "MFT255L16agagagag",                             false /*  parachute release */)