diff --git a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
index fc7869f291..154cbc251b 100755
--- a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
+++ b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
@@ -44,6 +44,7 @@
   Ia32/InterlockedCompareExchange32.asm | INTEL 
   Ia32/InterlockedCompareExchange16.nasm| INTEL
   Ia32/InterlockedCompareExchange16.asm | INTEL
+  Ia32/InterlockedDecrement.nasm| INTEL
   Ia32/InterlockedDecrement.asm | INTEL 
   Ia32/InterlockedIncrement.asm | INTEL 
   Synchronization.c | INTEL
diff --git a/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedDecrement.nasm b/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedDecrement.nasm
new file mode 100644
index 0000000000..a7414bee7a
--- /dev/null
+++ b/MdePkg/Library/BaseSynchronizationLib/Ia32/InterlockedDecrement.nasm
@@ -0,0 +1,39 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+;   InterlockedDecrement.Asm
+;
+; Abstract:
+;
+;   InterlockedDecrement function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT32
+; EFIAPI
+; InternalSyncDecrement (
+;   IN      UINT32                    *Value
+;   );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalSyncDecrement)
+ASM_PFX(InternalSyncDecrement):
+    mov     eax, [esp + 4]
+    lock    dec     dword [eax]
+    mov     eax, [eax]
+    ret
+