diff --git a/BaseTools/Source/Python/AutoGen/AutoGen.py b/BaseTools/Source/Python/AutoGen/AutoGen.py
index 7c0d7a4509..cd61e8e758 100644
--- a/BaseTools/Source/Python/AutoGen/AutoGen.py
+++ b/BaseTools/Source/Python/AutoGen/AutoGen.py
@@ -2935,7 +2935,8 @@ class ModuleAutoGen(AutoGen):
     #
     def _GetGuidList(self):
         if self._GuidList == None:
-            self._GuidList = self.Module.Guids
+            self._GuidList = sdict()
+            self._GuidList.update(self.Module.Guids)
             for Library in self.DependentLibraryList:
                 self._GuidList.update(Library.Guids)
                 self.UpdateComments(self._GuidComments, Library.GuidComments)
@@ -2955,7 +2956,8 @@ class ModuleAutoGen(AutoGen):
     #
     def _GetProtocolList(self):
         if self._ProtocolList == None:
-            self._ProtocolList = self.Module.Protocols
+            self._ProtocolList = sdict()
+            self._ProtocolList.update(self.Module.Protocols)
             for Library in self.DependentLibraryList:
                 self._ProtocolList.update(Library.Protocols)
                 self.UpdateComments(self._ProtocolComments, Library.ProtocolComments)
@@ -2968,7 +2970,8 @@ class ModuleAutoGen(AutoGen):
     #
     def _GetPpiList(self):
         if self._PpiList == None:
-            self._PpiList = self.Module.Ppis
+            self._PpiList = sdict()
+            self._PpiList.update(self.Module.Ppis)
             for Library in self.DependentLibraryList:
                 self._PpiList.update(Library.Ppis)
                 self.UpdateComments(self._PpiComments, Library.PpiComments)
diff --git a/BaseTools/Source/Python/AutoGen/GenC.py b/BaseTools/Source/Python/AutoGen/GenC.py
index 2646b29697..a140cc80a4 100644
--- a/BaseTools/Source/Python/AutoGen/GenC.py
+++ b/BaseTools/Source/Python/AutoGen/GenC.py
@@ -1550,6 +1550,17 @@ def CreateCode(Info, AutoGenC, AutoGenH, StringH, UniGenCFlag, UniGenBinBuffer):
         StringH.Append(gAutoGenHeaderString.Replace({'FileName':FileName}))
         StringH.Append(gAutoGenHPrologueString.Replace({'File':'STRDEFS', 'Guid':Info.Guid.replace('-','_')}))
         CreateUnicodeStringCode(Info, AutoGenC, StringH, UniGenCFlag, UniGenBinBuffer)
+
+        GuidMacros = []
+        for Guid in Info.Module.Guids:
+            if Guid in Info.Module.GetGuidsUsedByPcd():
+                continue
+            GuidMacros.append('#define %s %s' % (Guid, Info.Module.Guids[Guid]))
+        for Guid, Value in Info.Module.Protocols.items() + Info.Module.Ppis.items():
+            GuidMacros.append('#define %s %s' % (Guid, Value))
+        if GuidMacros:
+            StringH.Append('\n#ifdef VFRCOMPILE\n%s\n#endif\n' % '\n'.join(GuidMacros))
+
         StringH.Append("\n#endif\n")
         AutoGenH.Append('#include "%s"\n' % FileName)