diff --git a/ROMFS/px4fmu_common/init.d/rcS b/ROMFS/px4fmu_common/init.d/rcS
index 3b5423b570..64486fd869 100644
--- a/ROMFS/px4fmu_common/init.d/rcS
+++ b/ROMFS/px4fmu_common/init.d/rcS
@@ -749,7 +749,7 @@ then
 	then
 		if uavcan start
 		then
-			set LOGGER_BUF 7
+			set LOGGER_BUF 6
 			uavcan start fw
 		else
 			tone_alarm ${TUNE_ERR}