diff --git a/umbra/needleman_wunsch.py b/umbra/needleman_wunsch.py
index ddc27a4953fdb9863792b62e5b41b19888fa9f5d..6a6d5ac45b2dc017af162058b03202a2bdbbb418 100644
--- a/umbra/needleman_wunsch.py
+++ b/umbra/needleman_wunsch.py
@@ -3,14 +3,13 @@ from alignment_strategy import AlignmentStrategy
 from words import Sentence
 import numpy as np
 from mistake_enum import Mistake
-from dutch_mmetaphone import DutchPhonetics
 
 
 class NeedlemanWunsch(AlignmentStrategy):
     """Class that aligns the words of a shadow and source file according
     to the Needleman-Wunsch algorithm"""
 
-    def __init__(self, seman_checker, form_checker):
+    def __init__(self, seman_checker, form_checker, phon_checker):
         super().__init__()
         self._match = 4
         self._mismatch = -2
@@ -25,10 +24,11 @@ class NeedlemanWunsch(AlignmentStrategy):
         self._matrix = None
         self._seman_checker = seman_checker
         self._form_checker = form_checker
+        self._phon_checker = phon_checker
 
     def alignment_options(self, match=None, mismatch=None,
-                          gap_sc=None, seman_match=None, repetition=None,
-                          form_match=None):
+                          gap_sc=None, seman_match=None, phon_match=None,
+                          repetition=None, form_match=None):
         """ Set the scores that are allocated whilst aligning. Can be changed
             one at a time or more at once.
 
@@ -115,7 +115,7 @@ class NeedlemanWunsch(AlignmentStrategy):
                 elif self._seman_checker.semantically_related(
                         source_word.word, shadow_word.word):
                     value = self._seman_match
-                elif DutchPhonetics.compare(source_word.word,
+                elif self._phon_checker.compare(source_word.word,
                                             shadow_word.word):
                     value = self._phon_match
                 else:
@@ -212,7 +212,7 @@ class NeedlemanWunsch(AlignmentStrategy):
             source.shadow = shadow
             source.mistake = Mistake.FORM
             shadow.mistake = Mistake.FORM
-        elif DutchPhonetics.compare(source.word, shadow.word):
+        elif self._phon_checker.compare(source.word, shadow.word):
             source.shadowed = True
             source.mistake = Mistake.PHONETIC
             shadow.mistake = Mistake.PHONETIC