diff --git a/ROMFS/px4fmu_common/init.d/4009_qav250 b/ROMFS/px4fmu_common/init.d/4009_qav250
index bcb2c1d2ce..12ae8b6ea9 100644
--- a/ROMFS/px4fmu_common/init.d/4009_qav250
+++ b/ROMFS/px4fmu_common/init.d/4009_qav250
@@ -33,4 +33,6 @@ then
 	param set MPC_MANTHR_MIN 0.06
 	param set CBRK_IO_SAFETY 22027
 	param set ATT_BIAS_MAX 0.0
+	param set MC_TPA_BREAK 0.5
+ 	param set MC_TPA_SLOPE 1.0
 fi