diff --git a/pyaccuwage/model.py b/pyaccuwage/model.py
index a8f83cb..05f2315 100644
--- a/pyaccuwage/model.py
+++ b/pyaccuwage/model.py
@@ -57,12 +57,10 @@ class Model(object):
                         [field.get_data() for field in self.get_sorted_fields()])
         if len(result) != self.record_length:
             raise ValidationError("Record result length not equal to %d bytes (%d)" % (self.record_length, len(result)))
-
-		#result = ''.join([self.record_identifier] + [field.get_data() for field in self.get_sorted_fields()])
+        #result = ''.join([self.record_identifier] + [field.get_data() for field in self.get_sorted_fields()])
         #if len(result) != self.target_size:
         #    raise ValidationError("Record result length not equal to %d bytes (%d)" % (self.target_size, len(result)))
-
-		return result
+        return result
 
     def read(self, fp):
         for field in self.get_sorted_fields():
diff --git a/pyaccuwage/parser.py b/pyaccuwage/parser.py
index b367db1..57da8c9 100644
--- a/pyaccuwage/parser.py
+++ b/pyaccuwage/parser.py
@@ -6,7 +6,7 @@ convert it into python classes.
 
 """
 import re
-
+import hashlib
 
 class SimpleDefParser(object):
     def __init__(self):
@@ -132,7 +132,7 @@ class RecordBuilder(object):
         (fields.BlankField, {
             'regexp': {
                 'name': [
-                    (re.compile(r'^blank$', re.IGNORECASE), +1),
+                    (re.compile(r'^blank$', re.IGNORECASE), +3),
                 ],
             },
         }),
@@ -262,15 +262,16 @@ class RecordBuilder(object):
             yield entry
 
     def _convert_to_records(self, entries):
-        blank_count = 1
+        #blank_count = 1
         for entry in entries:
             result = []
             add = result.append
 
             # FIELD NAME
             if entry['name'] == 'blank':
-                add( (u'blank%d' % blank_count).ljust(40) )
-                blank_count += 1
+                blank_id = hashlib.new('md5')
+                blank_id.update(entry['range'].encode())
+                add( (u'blank_%s' % blank_id.hexdigest()[:8]).ljust(40) )
             else:
                 add(entry['name'].ljust(40))