diff --git a/src/drivers/px4io/px4io.cpp b/src/drivers/px4io/px4io.cpp
index 1be9f9836d..e6095430c5 100644
--- a/src/drivers/px4io/px4io.cpp
+++ b/src/drivers/px4io/px4io.cpp
@@ -1032,7 +1032,7 @@ PX4IO::task_main()
 				/* Check if the flight termination circuit breaker has been updated */
 				_cb_flighttermination = circuit_breaker_enabled("CBRK_FLIGHTTERM", CBRK_FLIGHTTERM_KEY);
 				/* Tell IO that it can terminate the flight if FMU is not responding or if a failure has been reported by the FailureDetector logic */
-				(void)io_reg_set(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ENABLE_FLIGHTTERM, !_cb_flighttermination);
+				(void)io_reg_set(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ENABLE_FLIGHTTERMINATION, !_cb_flighttermination);
 
 				param_get(param_find("RC_RSSI_PWM_CHAN"), &_rssi_pwm_chan);
 				param_get(param_find("RC_RSSI_PWM_MAX"), &_rssi_pwm_max);
diff --git a/src/modules/px4iofirmware/mixer.cpp b/src/modules/px4iofirmware/mixer.cpp
index 2a87ccc2cc..a01003a867 100644
--- a/src/modules/px4iofirmware/mixer.cpp
+++ b/src/modules/px4iofirmware/mixer.cpp
@@ -228,7 +228,7 @@ mixer_tick(void)
 	 * failsafe condition.
 	 */
 	if ( /* Flight termination is allowed */
-		REG_TO_BOOL(r_setup_flightterm) &&
+		REG_TO_BOOL(r_setup_flighttermination) &&
 		/* If we ended up not changing the default mixer */
 		(source == MIX_DISARMED) &&
 		/* and we should be armed, so we intended to provide outputs */
diff --git a/src/modules/px4iofirmware/protocol.h b/src/modules/px4iofirmware/protocol.h
index 7fe2d0d369..2ca5eb6492 100644
--- a/src/modules/px4iofirmware/protocol.h
+++ b/src/modules/px4iofirmware/protocol.h
@@ -240,7 +240,7 @@ enum {							/* DSM bind states */
 
 #define PX4IO_P_SETUP_AIRMODE 			27 	/* air-mode */
 
-#define PX4IO_P_SETUP_ENABLE_FLIGHTTERM		28	/* flight termination circuit breaker */
+#define PX4IO_P_SETUP_ENABLE_FLIGHTTERMINATION	28	/* flight termination circuit breaker */
 
 #define PX4IO_THERMAL_IGNORE			UINT16_MAX
 #define PX4IO_THERMAL_OFF			0
diff --git a/src/modules/px4iofirmware/px4io.h b/src/modules/px4iofirmware/px4io.h
index 8f021f847f..0b3d0634d7 100644
--- a/src/modules/px4iofirmware/px4io.h
+++ b/src/modules/px4iofirmware/px4io.h
@@ -133,7 +133,7 @@ extern uint16_t			r_page_servo_disarmed[];	/* PX4IO_PAGE_DISARMED_PWM */
 #define r_setup_thr_fac		r_page_setup[PX4IO_P_SETUP_THR_MDL_FAC]
 #define r_setup_slew_max	r_page_setup[PX4IO_P_SETUP_MOTOR_SLEW_MAX]
 #define r_setup_airmode		r_page_setup[PX4IO_P_SETUP_AIRMODE]
-#define r_setup_flightterm	r_page_setup[PX4IO_P_SETUP_ENABLE_FLIGHTTERM]
+#define r_setup_flighttermination	r_page_setup[PX4IO_P_SETUP_ENABLE_FLIGHTTERMINATION]
 
 #define r_control_values	(&r_page_controls[0])
 
diff --git a/src/modules/px4iofirmware/registers.c b/src/modules/px4iofirmware/registers.c
index 2e0f19eb9d..8cd9d909e1 100644
--- a/src/modules/px4iofirmware/registers.c
+++ b/src/modules/px4iofirmware/registers.c
@@ -182,7 +182,7 @@ volatile uint16_t	r_page_setup[] = {
 	[PX4IO_P_SETUP_AIRMODE] = 0,
 	[PX4IO_P_SETUP_THR_MDL_FAC] = 0,
 	[PX4IO_P_SETUP_THERMAL] = PX4IO_THERMAL_IGNORE,
-	[PX4IO_P_SETUP_ENABLE_FLIGHTTERM] = 0
+	[PX4IO_P_SETUP_ENABLE_FLIGHTTERMINATION] = 0
 };
 
 #define PX4IO_P_SETUP_FEATURES_VALID	(PX4IO_P_SETUP_FEATURES_SBUS1_OUT | \
@@ -713,7 +713,7 @@ registers_set_one(uint8_t page, uint8_t offset, uint16_t value)
 		case PX4IO_P_SETUP_MOTOR_SLEW_MAX:
 		case PX4IO_P_SETUP_AIRMODE:
 		case PX4IO_P_SETUP_THERMAL:
-		case PX4IO_P_SETUP_ENABLE_FLIGHTTERM:
+		case PX4IO_P_SETUP_ENABLE_FLIGHTTERMINATION:
 			r_page_setup[offset] = value;
 			break;