diff --git a/BaseTools/Bin/Win32/build.exe b/BaseTools/Bin/Win32/build.exe
index 9df5474b1a..bcf8917ff0 100755
Binary files a/BaseTools/Bin/Win32/build.exe and b/BaseTools/Bin/Win32/build.exe differ
diff --git a/BaseTools/ReadMe.txt b/BaseTools/ReadMe.txt
index 8a159101dc..37d1387e6c 100644
--- a/BaseTools/ReadMe.txt
+++ b/BaseTools/ReadMe.txt
@@ -29,7 +29,7 @@ Notes:
 3) build.exe in %WORKSPACE%\BaseTools\Bin\Win32 is generated from following revision of
    Python source code:
         r658 <buildtools_project>\BaseTools\Source\Python\Autogen
-        r658 <buildtools_project>\BaseTools\Source\Python\build
+        r722 <buildtools_project>\BaseTools\Source\Python\build
         r700 <buildtools_project>\BaseTools\Source\Python\Common
         r695 <buildtools_project>\BaseTools\Source\Python\CommonDataClass
         r710 <buildtools_project>\BaseTools\Source\Python\GenFds