diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf
index 47020f2056..998b33b885 100644
--- a/MdePkg/Library/BaseLib/BaseLib.inf
+++ b/MdePkg/Library/BaseLib/BaseLib.inf
@@ -455,6 +455,7 @@
   X64/EnableDisableInterrupts.asm | MSFT
   X64/DisableInterrupts.nasm| MSFT
   X64/DisableInterrupts.asm | MSFT
+  X64/EnableInterrupts.nasm| MSFT
   X64/EnableInterrupts.asm | MSFT
   X64/FlushCacheLine.asm | MSFT
   X64/Invd.asm | MSFT
@@ -532,6 +533,7 @@
   X64/EnableDisableInterrupts.asm | INTEL
   X64/DisableInterrupts.nasm| INTEL
   X64/DisableInterrupts.asm | INTEL
+  X64/EnableInterrupts.nasm| INTEL
   X64/EnableInterrupts.asm | INTEL
   X64/FlushCacheLine.asm | INTEL
   X64/Invd.asm | INTEL
diff --git a/MdePkg/Library/BaseLib/X64/EnableInterrupts.nasm b/MdePkg/Library/BaseLib/X64/EnableInterrupts.nasm
new file mode 100644
index 0000000000..ed10d506fe
--- /dev/null
+++ b/MdePkg/Library/BaseLib/X64/EnableInterrupts.nasm
@@ -0,0 +1,38 @@
+;------------------------------------------------------------------------------
+;
+; 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:
+;
+;   EnableInterrupts.Asm
+;
+; Abstract:
+;
+;   EnableInterrupts function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    DEFAULT REL
+    SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; EnableInterrupts (
+;   VOID
+;   );
+;------------------------------------------------------------------------------
+global ASM_PFX(EnableInterrupts)
+ASM_PFX(EnableInterrupts):
+    sti
+    ret
+