diff --git a/BaseTools/Source/Python/AutoGen/AutoGen.py b/BaseTools/Source/Python/AutoGen/AutoGen.py
index eb1b283889..314a321e95 100644
--- a/BaseTools/Source/Python/AutoGen/AutoGen.py
+++ b/BaseTools/Source/Python/AutoGen/AutoGen.py
@@ -39,7 +39,6 @@ from Common.StringUtils import *
 import Common.GlobalData as GlobalData
 from GenFds.FdfParser import *
 from CommonDataClass.CommonClass import SkuInfoClass
-from Workspace.BuildClassObject import *
 from GenPatchPcdTable.GenPatchPcdTable import parsePcdInfoFromMapFile
 import Common.VpdInfoFile as VpdInfoFile
 from .GenPcdDb import CreatePcdDatabaseCode