diff --git a/BaseTools/Source/Python/Workspace/DscBuildData.py b/BaseTools/Source/Python/Workspace/DscBuildData.py
index b5b6d35..ce2b8a4 100644
--- a/BaseTools/Source/Python/Workspace/DscBuildData.py
+++ b/BaseTools/Source/Python/Workspace/DscBuildData.py
@@ -1358,7 +1358,7 @@
         
         MakeApp = PcdMakefileHeader
         if sys.platform == "win32":
-            MakeApp = MakeApp + 'APPNAME = %s\n' % (PcdValueInitName) + 'OBJECTS = %s\%s.obj\n' % (self.OutputPath, PcdValueInitName) + 'INC = '
+            MakeApp = MakeApp + 'ARCH = IA32\nAPPNAME = %s\n' % (PcdValueInitName) + 'OBJECTS = %s\%s.obj\n' % (self.OutputPath, PcdValueInitName) + 'INC = '
         else:
             MakeApp = MakeApp + PcdGccMakefile
             MakeApp = MakeApp + 'APPNAME = %s\n' % (PcdValueInitName) + 'OBJECTS = %s/%s.o\n' % (self.OutputPath, PcdValueInitName) + \