diff --git a/spacy/tests/vectors/test_vectors.py b/spacy/tests/vectors/test_vectors.py
index ce183f9fd..a9eabc78d 100644
--- a/spacy/tests/vectors/test_vectors.py
+++ b/spacy/tests/vectors/test_vectors.py
@@ -3,6 +3,7 @@ from __future__ import unicode_literals
 
 from ...vectors import Vectors
 from ...tokenizer import Tokenizer
+from ...strings import hash_string
 from ..util import add_vecs_to_vocab, get_doc
 
 import numpy
@@ -45,6 +46,7 @@ def test_init_vectors_with_shape(strings):
 
 def test_get_vector(strings, data):
     v = Vectors(data=data)
+    strings = [hash_string(s) for s in strings]
     for i, string in enumerate(strings):
         v.add(string, row=i)
     assert list(v[strings[0]]) == list(data[0])
@@ -55,6 +57,7 @@ def test_get_vector(strings, data):
 def test_set_vector(strings, data):
     orig = data.copy()
     v = Vectors(data=data)
+    strings = [hash_string(s) for s in strings]
     for i, string in enumerate(strings):
         v.add(string, row=i)
     assert list(v[strings[0]]) == list(orig[0])