diff --git a/headers/private/graphics/neomagic/nm_macros.h b/headers/private/graphics/neomagic/nm_macros.h
index 96e43d023c..841d783e86 100644
--- a/headers/private/graphics/neomagic/nm_macros.h
+++ b/headers/private/graphics/neomagic/nm_macros.h
@@ -200,8 +200,10 @@
 
 /* NeoMagic PCI acceleration registers */
 #define NMACC_STATUS			0x0000
-#define NMACC_BLTCNTL			0x0004
+#define NMACC_CONTROL			0x0004
 #define NMACC_FGCOLOR			0x000c
+#define NMACC_CLIPLT			0x0018
+#define NMACC_CLIPRB			0x001c
 #define NMACC_SRCSTARTOFF		0x0024
 #define NMACC_DSTSTARTOFF		0x002c
 #define NMACC_XYEXT				0x0030