diff --git a/BaseTools/Source/Python/GenFds/FfsFileStatement.py b/BaseTools/Source/Python/GenFds/FfsFileStatement.py
index 9fb62b0a91..1c6e59bac7 100644
--- a/BaseTools/Source/Python/GenFds/FfsFileStatement.py
+++ b/BaseTools/Source/Python/GenFds/FfsFileStatement.py
@@ -21,6 +21,7 @@ from .GuidSection import GuidSection
 from .FvImageSection import FvImageSection
 from .Ffs import FdfFvFileTypeToFileType
 from .GenFdsGlobalVariable import GenFdsGlobalVariable
+import shutil
 
 ## generate FFS from FILE
 #
@@ -67,6 +68,8 @@ class FileStatement (FileStatementClassObject):
         if FvName:
             Str += FvName
         OutputDir = os.path.join(GenFdsGlobalVariable.FfsDir, Str)
+        if os.path.exists(OutputDir):
+            shutil.rmtree(OutputDir)
         if not os.path.exists(OutputDir):
             os.makedirs(OutputDir)