diff --git a/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml b/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml
index 1a4fd8a03c65dc148deb4b2e0d38d8e6d1d839ba..a48407f1df8e097565d16f226e6e6681893e4e52 100644
--- a/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml
+++ b/src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml
@@ -513,7 +513,7 @@ Set to 2 to use heading from motion capture</short_desc>
 * the MSB bit is not used to avoid problems in the conversion between int and uint</short_desc>
       <long_desc>Default value: (10 &lt;&lt; 0 | 1000 &lt;&lt; 8 | 0 &lt;&lt; 24) = 256010 - authorizer system id = 10 - authentication method parameter = 10000msec of timeout - authentication method = during arm</long_desc>
     </parameter>
-    <parameter default="2.4e-3" name="COM_ARM_EKF_AB" type="FLOAT">
+    <parameter default="1.73e-3" name="COM_ARM_EKF_AB" type="FLOAT">
       <short_desc>Maximum value of EKF accelerometer delta velocity bias estimate that will allow arming.
 Note: ekf2 will limit the delta velocity bias estimate magnitude to be less than EKF2_ABL_LIM * FILTER_UPDATE_PERIOD_MS * 0.001 so this parameter must be less than that to be useful</short_desc>
       <min>0.001</min>