diff --git a/libraries/AP_HAL_ChibiOS/hwdef/scripts/chibios_hwdef.py b/libraries/AP_HAL_ChibiOS/hwdef/scripts/chibios_hwdef.py
index f86c477541..9028d6f601 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/scripts/chibios_hwdef.py
+++ b/libraries/AP_HAL_ChibiOS/hwdef/scripts/chibios_hwdef.py
@@ -3030,6 +3030,10 @@ def add_iomcu_firmware_defaults(f):
 #ifndef AP_INERTIALSENSOR_ENABLED
 #define AP_INERTIALSENSOR_ENABLED 0
 #endif
+
+#ifndef AP_VIDEOTX_ENABLED
+#define AP_VIDEOTX_ENABLED 0
+#endif
 ''')
 
 def add_normal_firmware_defaults(f):
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/skyviper-v2450/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/skyviper-v2450/hwdef.dat
index e569440a49..6a180b6aac 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/skyviper-v2450/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/skyviper-v2450/hwdef.dat
@@ -149,4 +149,7 @@ define AP_INERTIALSENSOR_BATCHSAMPLER_ENABLED 0
 define EK3_FEATURE_EXTERNAL_NAV 0
 define EK3_FEATURE_BODY_ODOM 0
 
+// video on SkyViper is via the Sonix
+define AP_VIDEOTX_ENABLED 0
+
 AUTOBUILD_TARGETS Copter