diff --git a/ROMFS/px4fmu_common/init.d/rcS b/ROMFS/px4fmu_common/init.d/rcS
index 8a4e0fb441..7b01c11c78 100644
--- a/ROMFS/px4fmu_common/init.d/rcS
+++ b/ROMFS/px4fmu_common/init.d/rcS
@@ -634,11 +634,11 @@ then
 		else
 			if param compare SYS_LOGGER 0
 			then
-				if sdlog2 start -r 100 -a -b 10 -t
+				if sdlog2 start -r 100 -a -b 9 -t
 				then
 				fi
 			else
-				if logger start -b 20
+				if logger start -b 9
 				then
 				fi
 			fi