diff --git a/lib/libx52util/x52_char_map_gen.py b/lib/libx52util/x52_char_map_gen.py
index 74bdc77..8f5a1f4 100755
--- a/lib/libx52util/x52_char_map_gen.py
+++ b/lib/libx52util/x52_char_map_gen.py
@@ -138,8 +138,6 @@ class LineFormatError(ValueError):
     """
     Error class for parser
     """
-    pass
-
 
 def parse_line(data):
     """