diff --git a/spacy/gold/align.pxd b/spacy/gold/align.pxd
new file mode 100644
index 000000000..ea3615863
--- /dev/null
+++ b/spacy/gold/align.pxd
@@ -0,0 +1,8 @@
+cdef class Alignment:
+    cdef public object cost
+    cdef public object i2j
+    cdef public object j2i
+    cdef public object i2j_multi
+    cdef public object j2i_multi
+    cdef public object cand_to_gold
+    cdef public object gold_to_cand