diff --git a/sw/airborne/firmwares/fixedwing/guidance/guidance_v_n.c b/sw/airborne/firmwares/fixedwing/guidance/guidance_v_n.c
index f3d30e10b7f..527c1dc5b5b 100644
--- a/sw/airborne/firmwares/fixedwing/guidance/guidance_v_n.c
+++ b/sw/airborne/firmwares/fixedwing/guidance/guidance_v_n.c
@@ -87,7 +87,9 @@ pprz_t v_ctl_throttle_setpoint;
 pprz_t v_ctl_throttle_slewed;
 
 // Set higher than 2*V_CTL_ALTITUDE_MAX_CLIMB to disable
+#ifndef V_CTL_AUTO_CLIMB_LIMIT
 #define V_CTL_AUTO_CLIMB_LIMIT (0.5/4.0) // m/s/s
+#endif
 
 uint8_t v_ctl_speed_mode;