diff --git a/BaseTools/Source/Python/Workspace/DscBuildData.py b/BaseTools/Source/Python/Workspace/DscBuildData.py
index 93751678f9..9881dbe556 100644
--- a/BaseTools/Source/Python/Workspace/DscBuildData.py
+++ b/BaseTools/Source/Python/Workspace/DscBuildData.py
@@ -709,7 +709,6 @@ class DscBuildData(PlatformBuildClassObject):
     def OverrideDuplicateModule(self):
         RecordList = self._RawData[MODEL_META_DATA_COMPONENT, self._Arch]
         Macros = self._Macros
-        Macros["EDK_SOURCE"] = GlobalData.gEcpSource
         Components = {}
         for Record in RecordList:
             ModuleId = Record[6]