diff --git a/spacy/tests/regression/test_issue3288.py b/spacy/tests/regression/test_issue3288.py
index 5379a585a..f196fcc05 100644
--- a/spacy/tests/regression/test_issue3288.py
+++ b/spacy/tests/regression/test_issue3288.py
@@ -8,7 +8,6 @@ from spacy import displacy
 from ..util import get_doc
 
 
-@pytest.mark.xfail
 def test_issue3288(en_vocab):
     """Test that retokenization works correctly via displaCy when punctuation
     is merged onto the preceeding token and tensor is resized."""
diff --git a/spacy/tokens/_retokenize.pyx b/spacy/tokens/_retokenize.pyx
index 0355e3200..fd621922f 100644
--- a/spacy/tokens/_retokenize.pyx
+++ b/spacy/tokens/_retokenize.pyx
@@ -222,7 +222,7 @@ def _bulk_merge(Doc doc, merges):
     # whether the row is to be deleted, then use numpy.delete
     if doc.tensor is not None and doc.tensor.size != 0:
         doc.tensor = _resize_tensor(doc.tensor,
-            [(m[1][0].start, m[1][0].end) for m in merges])
+            [(m[0].start, m[0].end) for m in merges])
     # Memorize span roots and sets dependencies of the newly merged
     # tokens to the dependencies of their roots.
     span_roots = []