diff --git a/headers/private/graphics/nvidia/nv_macros.h b/headers/private/graphics/nvidia/nv_macros.h
index 5fcd54654f..c4d2887adc 100644
--- a/headers/private/graphics/nvidia/nv_macros.h
+++ b/headers/private/graphics/nvidia/nv_macros.h
@@ -675,9 +675,13 @@
 #define NVCRTCX_CURCTL1		0x30
 #define NVCRTCX_CURCTL0		0x31
 #define NVCRTCX_LCD			0x33
+#define NVCRTCX_RD_I2CBUS_1	0x36
+#define NVCRTCX_WR_I2CBUS_1	0x37
 #define NVCRTCX_RMA			0x38
 #define NVCRTCX_INTERLACE	0x39
 #define NVCRTCX_TREG		0x3d
+#define NVCRTCX_RD_I2CBUS_0	0x3e
+#define NVCRTCX_WR_I2CBUS_0	0x3f
 #define NVCRTCX_EXTRA		0x41
 #define NVCRTCX_OWNER		0x44
 #define NVCRTCX_FP_HTIMING	0x53