diff --git a/spacy/syntax/iterators.pxd b/spacy/syntax/iterators.pxd
index 662f851c8..5c574426f 100644
--- a/spacy/syntax/iterators.pxd
+++ b/spacy/syntax/iterators.pxd
@@ -8,6 +8,7 @@ cdef class EnglishNounChunks(DocIterator):
     cdef int i
     cdef int _np_label
     cdef set _np_deps
+    cdef int _conjunct
 
 cdef class GermanNounChunks(DocIterator):
     cdef int i