diff --git a/conf/airframes/CDW/TwoSeas.xml b/conf/airframes/CDW/TwoSeas.xml
index 71bcd57613c..39a2c8d6bbf 100644
--- a/conf/airframes/CDW/TwoSeas.xml
+++ b/conf/airframes/CDW/TwoSeas.xml
@@ -13,6 +13,7 @@
   <!-- ************************* FIRMWARE ************************* -->
 
   <firmware name="fixedwing">
+    <define name="RADIO_CONTROL_NB_CHANNEL" value="8" />
     <target name="ap" board="lisa_l_1.0">
       <configure name="SEPARATE_FBW" value="1"/>
       <configure name="AHRS_ALIGNER_LED" value="1"/>