diff --git a/lib/sdk/wdmguid/wdmguid.c b/lib/sdk/wdmguid/wdmguid.c
index 3ae2ac42bff..57070116391 100644
--- a/lib/sdk/wdmguid/wdmguid.c
+++ b/lib/sdk/wdmguid/wdmguid.c
@@ -14,5 +14,7 @@ DEFINE_GUID(GUID_DEVINTERFACE_DISK,
   0x53f56307L, 0xb6bf, 0x11d0, 0x94, 0xf2, 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
 DEFINE_GUID(GUID_DEVINTERFACE_CDROM,
   0x53f56308L, 0xb6bf, 0x11d0, 0x94, 0xf2, 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
+DEFINE_GUID(GUID_DEVINTERFACE_PARTITION,
+  0x53f5630aL, 0xb6bf, 0x11d0, 0x94, 0xf2, 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
 
 /* EOF */