diff --git a/BaseTools/Source/Python/AutoGen/UniClassObject.py b/BaseTools/Source/Python/AutoGen/UniClassObject.py
index d28fd3a1ea..183b2b2337 100644
--- a/BaseTools/Source/Python/AutoGen/UniClassObject.py
+++ b/BaseTools/Source/Python/AutoGen/UniClassObject.py
@@ -444,7 +444,7 @@ class UniFileClassObject(object):
                                 Line = Line[0 : StartPos] + UniStr + EndStr
                         else:
                             Line = Line[0 : StartPos] + UniStr + EndStr[1:]
-                StartPos = Line.find(u'\\x', StartPos)
+                StartPos = Line.find(u'\\x', StartPos + 1)
 
             IncList = gIncludePattern.findall(Line)
             if len(IncList) == 1: