diff --git a/libraries/AP_Motors/AP_Motors_Class.h b/libraries/AP_Motors/AP_Motors_Class.h
index ed329c09d43a5..51b545f5bbdcb 100644
--- a/libraries/AP_Motors/AP_Motors_Class.h
+++ b/libraries/AP_Motors/AP_Motors_Class.h
@@ -24,6 +24,22 @@
 #define AP_MOTORS_MOT_14 13U
 #define AP_MOTORS_MOT_15 14U
 #define AP_MOTORS_MOT_16 15U
+#define AP_MOTORS_MOT_17 16U
+#define AP_MOTORS_MOT_18 17U
+#define AP_MOTORS_MOT_19 18U
+#define AP_MOTORS_MOT_20 19U
+#define AP_MOTORS_MOT_21 20U
+#define AP_MOTORS_MOT_22 21U
+#define AP_MOTORS_MOT_23 22U
+#define AP_MOTORS_MOT_24 23U
+#define AP_MOTORS_MOT_25 24U
+#define AP_MOTORS_MOT_26 25U
+#define AP_MOTORS_MOT_27 26U
+#define AP_MOTORS_MOT_28 27U
+#define AP_MOTORS_MOT_29 28U
+#define AP_MOTORS_MOT_30 29U
+#define AP_MOTORS_MOT_31 30U
+#define AP_MOTORS_MOT_32 31U
 
 #ifndef AP_MOTORS_MAX_NUM_MOTORS
 #define AP_MOTORS_MAX_NUM_MOTORS 32