diff --git a/SecurityPkg/SecurityPkg.dsc b/SecurityPkg/SecurityPkg.dsc
index dee92411d6..26bcbda54d 100644
--- a/SecurityPkg/SecurityPkg.dsc
+++ b/SecurityPkg/SecurityPkg.dsc
@@ -136,6 +136,7 @@
   Tpm12DeviceLib|SecurityPkg/Library/Tpm12DeviceLibTcg/Tpm12DeviceLibTcg.inf
   Tpm2DeviceLib|SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.inf
   Tcg2PhysicalPresenceLib|SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/SmmTcg2PhysicalPresenceLib.inf
+  SmmIoLib|MdePkg/Library/SmmIoLib/SmmIoLib.inf
 
 [PcdsDynamicDefault.common.DEFAULT]
   gEfiSecurityPkgTokenSpaceGuid.PcdTpmInstanceGuid|{0xb6, 0xe5, 0x01, 0x8b, 0x19, 0x4f, 0xe8, 0x46, 0xab, 0x93, 0x1c, 0x53, 0x67, 0x1b, 0x90, 0xcc}