diff --git a/libraries/AP_HAL_ChibiOS/hwdef/omnibusf4pro/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/omnibusf4pro/hwdef.dat
index 3e56caad28..330f6664bc 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/omnibusf4pro/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/omnibusf4pro/hwdef.dat
@@ -94,6 +94,9 @@ define HAL_GPIO_B_LED_PIN 2
 
 PB4 TIM3_CH1 TIM3 GPIO(58) ALARM LOW
 
+#use LED-STRIP output as general purpose GPIO
+PB6 GP_GPIO OUTPUT LOW GPIO(70)
+
 PA11 OTG_FS_DM OTG1
 PA12 OTG_FS_DP OTG1
 PC5 VBUS INPUT OPENDRAIN