diff --git a/conf/modules/ahrs_float_dcm.xml b/conf/modules/ahrs_float_dcm.xml
index 33f811b7d9..9209809ba1 100644
--- a/conf/modules/ahrs_float_dcm.xml
+++ b/conf/modules/ahrs_float_dcm.xml
@@ -19,6 +19,7 @@
     <define name="USE_MAGNETOMETER_ONGROUND" description="use magnetic compensation before takeoff only while GPS course not good"/>
     <define name="USE_AHRS_GPS_ACCELERATIONS" description="enable forward acceleration compensation from GPS speed"/>
     <define name="ACCEL_WEIGHT_FILTER" value="8" description="adjust accel drift heuristic filter (default 8, 0 to disable filter)"/>
+    <define name="ACCEL_WEIGHT_BAND" value="1." description="band size of accel filter: 1. means that there is no correction when accel magnitude exceeds +/- 0.5G around 1G (normal flight)"/>
   </doc>
 
   <settings>