diff --git a/spacy/kb/candidate.pxd b/spacy/kb/candidate.pxd
index 23da038d3..924357ad0 100644
--- a/spacy/kb/candidate.pxd
+++ b/spacy/kb/candidate.pxd
@@ -11,6 +11,5 @@ cdef class Candidate:
 
 cdef class InMemoryCandidate(Candidate):
     cdef readonly InMemoryLookupKB _kb
-    cdef hash_t _entity_hash
     cdef float _entity_freq
     cdef hash_t _mention
\ No newline at end of file