diff --git a/headers/private/graphics/nvidia/nv_macros.h b/headers/private/graphics/nvidia/nv_macros.h
index e736040a50..e394f68551 100644
--- a/headers/private/graphics/nvidia/nv_macros.h
+++ b/headers/private/graphics/nvidia/nv_macros.h
@@ -433,6 +433,7 @@
 #define NV32_PFB_REFCTRL	0x00100210
 #define NV32_COREPLL		0x00680500
 #define NV32_MEMPLL			0x00680504
+#define NV32_PLL_CTRL		0x00680510
 #define NV32_COREPLL2		0x00680570 /* NV31, NV36 only */
 #define NV32_MEMPLL2		0x00680574 /* NV31, NV36 only */
 #define NV32_CONFIG         0x00600804