diff --git a/sw/airborne/booz/radio_control/booz_radio_control_spektrum_dx7se_joby.h b/sw/airborne/booz/radio_control/booz_radio_control_spektrum_dx7se_joby.h
index 90f3e67bdc..69317455c2 100644
--- a/sw/airborne/booz/radio_control/booz_radio_control_spektrum_dx7se_joby.h
+++ b/sw/airborne/booz/radio_control/booz_radio_control_spektrum_dx7se_joby.h
@@ -39,7 +39,7 @@
                         MAX_PPRZ/MAX_SPK, \
                        -MAX_PPRZ/MAX_SPK, \
                        -MAX_PPRZ/MAX_SPK, \
-                        MAX_PPRZ/MAX_SPK, \
+                       -MAX_PPRZ/MAX_SPK, \
                         MAX_PPRZ/MAX_SPK, \
                         MAX_PPRZ/MAX_SPK }