diff --git a/conf/messages.xml b/conf/messages.xml
index 43a1d36ee1..47e1733e44 100644
--- a/conf/messages.xml
+++ b/conf/messages.xml
@@ -296,6 +296,12 @@
     <field name="time" type="uint32" unit="us"></field>
  </message>
 
+  <message name="H_CTL_A" id="60">
+    <field name="roll_sum_err" type="float"/>
+    <field name="ref_roll_angle" type="float" unit="rad" alt_unit="deg" alt_unit_coef="57.3"/>
+    <field name="ref_pitch_angle" type="float" unit="rad" alt_unit="deg" alt_unit_coef="57.3"/>
+  </message>
+
 
   <message name="PPM" id="100">
     <field name="ppm_rate" type="uint8"></field>