diff --git a/CryptoPkg/Library/OpensslLib/OpensslLib.inf b/CryptoPkg/Library/OpensslLib/OpensslLib.inf
index 20200c33f6..a6d511e839 100644
--- a/CryptoPkg/Library/OpensslLib/OpensslLib.inf
+++ b/CryptoPkg/Library/OpensslLib/OpensslLib.inf
@@ -865,9 +865,10 @@
   # C4305: truncation from type1 to type2 of smaller size
   # C4306: conversion from type1 to type2 of greater size
   # C4702: Potentially uninitialized local variable name used
+  # C4311: pointer truncation from 'type' to 'type'
   #
   MSFT:*_*_IA32_CC_FLAGS    = -U_WIN32 -U_WIN64 -U_MSC_VER $(OPENSSL_FLAGS) /wd4244 /wd4701 /wd4702 /wd4706
-  MSFT:*_*_X64_CC_FLAGS     = -U_WIN32 -U_WIN64 -U_MSC_VER $(OPENSSL_FLAGS) /wd4133 /wd4244 /wd4245 /wd4267 /wd4701 /wd4305 /wd4306 /wd4702 /wd4706
+  MSFT:*_*_X64_CC_FLAGS     = -U_WIN32 -U_WIN64 -U_MSC_VER $(OPENSSL_FLAGS) /wd4133 /wd4244 /wd4245 /wd4267 /wd4701 /wd4305 /wd4306 /wd4702 /wd4706 /wd4311
   MSFT:*_*_IPF_CC_FLAGS     = -U_WIN32 -U_WIN64 -U_MSC_VER $(OPENSSL_FLAGS) /wd4133 /wd4244 /wd4245 /wd4267 /wd4701 /wd4305 /wd4306 /wd4702 /wd4706
 
   INTEL:*_*_IA32_CC_FLAGS   = -U_WIN32 -U_WIN64 -U_MSC_VER -U__ICC $(OPENSSL_FLAGS) /w