diff --git a/spacy/tests/parser/test_space_attachment.py b/spacy/tests/parser/test_space_attachment.py
index 114d324fd..d1e520a0f 100644
--- a/spacy/tests/parser/test_space_attachment.py
+++ b/spacy/tests/parser/test_space_attachment.py
@@ -1,6 +1,9 @@
 from __future__ import unicode_literals
 
 import pytest
+import numpy
+from spacy.attrs import HEAD
+
 
 @pytest.mark.models
 def test_space_attachment(EN):
@@ -10,3 +13,15 @@ def test_space_attachment(EN):
     for sent in doc.sents:
         if len(sent) == 1:
             assert not sent[-1].is_space
+
+
+@pytest.mark.xfail
+def test_sentence_space(EN):
+    text = ('''I look forward to using Thingamajig.  I've been told it will '''
+            '''make my life easier...''')
+    doc = EN(text)
+    doc.from_array([HEAD], numpy.asarray([[1, 0, -1, -2, -1, -1, -5,
+                                           4, 3, 2, 1, 0, 2, 1, -3, 1, 1, -3, -7]],
+                                 dtype='int32').T)
+    assert len(list(doc.sents)) == 2
+