1 files changed, 4 insertions, 0 deletions
diff --git a/BaseTools/Source/Python/Workspace/MetaFileParser.py b/BaseTools/Source/Python/Workspace/MetaFileParser.py
index 37a7f5d1de..d094403a00 100644
--- a/BaseTools/Source/Python/Workspace/MetaFileParser.py
+++ b/BaseTools/Source/Python/Workspace/MetaFileParser.py
@@ -859,6 +859,8 @@ class DscParser(MetaFileParser):
 
     SymbolPattern = ValueExpression.SymbolPattern
 
+    IncludedFiles = set()
+
     ## Constructor of DscParser
     #
     #  Initialize object of DscParser
@@ -1501,6 +1503,8 @@ class DscParser(MetaFileParser):
             Parser = DscParser(IncludedFile1, self._FileType, self._Arch, IncludedFileTable,
                                Owner=Owner, From=Owner)
 
+            self.IncludedFiles.add (IncludedFile1)
+
             # Does not allow lower level included file to include upper level included file
             if Parser._From != Owner and int(Owner) > int (Parser._From):
                 EdkLogger.error('parser', FILE_ALREADY_EXIST, File=self._FileWithError,