diff --git a/ROMFS/px4fmu_common/mixers/vtol_tailsitter_duo.main.mix b/ROMFS/px4fmu_common/mixers/vtol_tailsitter_duo.main.mix
index 847bb085f9..ab216c63c5 100644
--- a/ROMFS/px4fmu_common/mixers/vtol_tailsitter_duo.main.mix
+++ b/ROMFS/px4fmu_common/mixers/vtol_tailsitter_duo.main.mix
@@ -29,11 +29,9 @@ Channel 5 connects to the right (starboard) elevon.
 Channel 6 connects to the left (port) elevon.
 
 M: 2
-O:        7500    7500    0 -10000  10000
 S: 1 0   10000   10000    0 -10000  10000
 S: 1 1   10000   10000    0 -10000  10000
 
 M: 2
-O:        7500    7500    0 -10000  10000
 S: 1 0   10000   10000    0 -10000  10000
 S: 1 1  -10000  -10000    0 -10000  10000