1 files changed, 3 insertions, 0 deletions
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 6c563375ee..b382efd578 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -1167,6 +1167,9 @@
   # Protocols defined in PI 1.5.
   #
 
+  ## Include/Protocol/MmMp.h
+  gEfiMmMpProtocolGuid = { 0x5d5450d7, 0x990c, 0x4180, { 0xa8, 0x3, 0x8e, 0x63, 0xf0, 0x60, 0x83, 0x7 }}
+
   ## Include/Protocol/MmEndOfDxe.h
   gEfiMmEndOfDxeProtocolGuid = { 0x24e70042, 0xd5c5, 0x4260, { 0x8c, 0x39, 0xa, 0xd3, 0xaa, 0x32, 0xe9, 0x3d }}