diff --git a/board/grunt/gpio.inc b/board/grunt/gpio.inc
index 03a5f9ed6d..03870cb736 100644
--- a/board/grunt/gpio.inc
+++ b/board/grunt/gpio.inc
@@ -78,6 +78,8 @@ GPIO(USB_C0_BC12_VBUS_ON_L,	PIN(8, 2), GPIO_ODR_HIGH)			/* C0 BC1.2 Power */
 GPIO(USB_C1_BC12_VBUS_ON_L,	PIN(B, 1), GPIO_ODR_HIGH)			/* C1 BC1.2 Power */
 GPIO(USB_C0_BC12_CHG_DET,	PIN(6, 2), GPIO_INPUT)				/* C0 BC1.2 Detect */
 GPIO(USB_C1_BC12_CHG_DET,	PIN(8, 3), GPIO_INPUT)				/* C1 BC1.2 Detect */
+GPIO(USB_C0_DP_HPD,		PIN(9, 5), GPIO_OUT_LOW)			/* C0 DP Hotplug Detect */
+GPIO(USB_C1_DP_HPD,		PIN(9, 6), GPIO_OUT_LOW)			/* C1 DP Hotplug Detect */
 
 /* Board ID */
 GPIO(BOARD_VERSION1,		PIN(C, 7), GPIO_INPUT)