diff --git a/src/southbridge/intel/bd82x6x/pch.h b/src/southbridge/intel/bd82x6x/pch.h
index 7b52ebc..4ec2903 100644
--- a/src/southbridge/intel/bd82x6x/pch.h
+++ b/src/southbridge/intel/bd82x6x/pch.h
@@ -449,6 +449,7 @@
 #define USBOCM2		0x35a4	/* 32bit */
 
 /* XHCI USB 3.0 */
+#define XOCM		0xc0	/* 32bit */
 #define XUSB2PRM	0xd4	/* 32bit */
 #define USB3PRM		0xdc	/* 32bit */