diff --git a/headers/private/graphics/nvidia/DriverInterface.h b/headers/private/graphics/nvidia/DriverInterface.h
index ce0d6008d0..ff34b1ca86 100644
--- a/headers/private/graphics/nvidia/DriverInterface.h
+++ b/headers/private/graphics/nvidia/DriverInterface.h
@@ -235,6 +235,7 @@ typedef struct {
 		float panel2_aspect;		/* panel's aspect ratio */
 		bool crtc2_prim;			/* using CRTC2 as primary CRTC */
 		uint32 tvout_chip_type;     /* see tvchip_type enum above */
+		uint8 monitors;				/* output devices connection matrix */
 		status_t pins_status;		/* B_OK if read correctly, B_ERROR if faked */
 
 		/* PINS */