diff --git a/spacy/syntax/nonproj.pyx b/spacy/syntax/nonproj.pyx
index 91afc2347..fc46feae5 100644
--- a/spacy/syntax/nonproj.pyx
+++ b/spacy/syntax/nonproj.pyx
@@ -1,3 +1,6 @@
+from future.standard_library import install_aliases
+install_aliases()
+
 from copy import copy
 from collections import Counter