diff --git a/BaseTools/Source/Python/GenFds/FdfParser.py b/BaseTools/Source/Python/GenFds/FdfParser.py
index 223b453e7e..8a9296c49d 100644
--- a/BaseTools/Source/Python/GenFds/FdfParser.py
+++ b/BaseTools/Source/Python/GenFds/FdfParser.py
@@ -1135,7 +1135,7 @@ class FdfParser:
     @staticmethod
     def __Verify(Name, Value, Scope):
         # value verification only applies to numeric values.
-        if scope not in TAB_PCD_NUMERIC_TYPES:
+        if Scope not in TAB_PCD_NUMERIC_TYPES:
             return
 
         ValueNumber = 0