diff --git a/SecurityPkg/SecurityPkg.dec b/SecurityPkg/SecurityPkg.dec
index 2c2153c19e..65f3587c48 100644
--- a/SecurityPkg/SecurityPkg.dec
+++ b/SecurityPkg/SecurityPkg.dec
@@ -234,6 +234,10 @@
   ## The GUIDed HOB contains the same value as PcdGetPtr (PcdTpmInstanceGuid).
   gEdkiiTpmInstanceHobGuid           = { 0x4551b023, 0xba46, 0x4584, { 0x81, 0xcd, 0x4d, 0xe8, 0x61, 0xa7, 0x28, 0xbe } }
 
+  ## GUID used to tag the HOB indicating the Version of Physical Presence interface.
+  ## The GUIDed HOB contains the same value as PcdGetPtr (PcdTcgPhysicalPresenceInterfaceVer).
+  gEdkiiTcgPhysicalPresenceInterfaceVerHobGuid = { 0x3979411a, 0x4e6d, 0x47e4, { 0x94, 0x4b, 0x0e, 0xcc, 0x6c, 0xf6, 0xc0, 0xcd } }
+
 [Ppis]
   ## The PPI GUID for that TPM physical presence should be locked.
   # Include/Ppi/LockPhysicalPresence.h