diff --git a/BaseTools/Source/Python/Common/GlobalData.py b/BaseTools/Source/Python/Common/GlobalData.py
index f7d4d577f9..8b36a1b773 100644
--- a/BaseTools/Source/Python/Common/GlobalData.py
+++ b/BaseTools/Source/Python/Common/GlobalData.py
@@ -47,8 +47,7 @@ gDefaultStores = []
 gMacroRefPattern = re.compile("\$\(([A-Z][_A-Z0-9]*)\)", re.UNICODE)
 gMacroDefPattern = re.compile("^(DEFINE|EDK_GLOBAL)[ \t]+")
 gMacroNamePattern = re.compile("^[A-Z][A-Z0-9_]*$")
-# C-style wide string pattern
-gWideStringPattern = re.compile('(\W|\A)L"')
+
 #
 # A global variable for whether current build in AutoGen phase or not.
 #