diff --git a/spacy/lexeme.pxd b/spacy/lexeme.pxd
index 066f05b20..76b236e5b 100644
--- a/spacy/lexeme.pxd
+++ b/spacy/lexeme.pxd
@@ -24,6 +24,7 @@ cpdef enum:
 cdef struct Lexeme:
     flag_t flags
    
+    id_t id
     id_t sic
     id_t norm
     id_t shape
@@ -36,7 +37,7 @@ cdef struct Lexeme:
     
     len_t length
     tag_t cluster
-    tag_t pos
+    tag_t postype
     tag_t supersense
 
 
@@ -44,7 +45,7 @@ cdef struct Lexeme:
 
 cdef Lexeme EMPTY_LEXEME
 
-cpdef Lexeme init(unicode string, hash_t hashed,
+cpdef Lexeme init(id_t i, unicode string, hash_t hashed,
                   StringStore store, dict props) except *
  
 
diff --git a/spacy/lexeme.pyx b/spacy/lexeme.pyx
index 98b8decff..6616cda47 100644
--- a/spacy/lexeme.pyx
+++ b/spacy/lexeme.pyx
@@ -26,14 +26,15 @@ def get_flags(unicode string, float upper_pc, float title_pc, float lower_pc):
     return flags
 
 
-cpdef Lexeme init(unicode string, hash_t hashed,
+cpdef Lexeme init(id_t i, unicode string, hash_t hashed,
                   StringStore store, dict props) except *:
     cdef Lexeme lex
+    lex.id = i
     lex.length = len(string)
     lex.sic = get_string_id(string, store)
     
     lex.cluster = props.get('cluster', 0)
-    lex.pos = props.get('pos', 0)
+    lex.postype = props.get('postype', 0)
     lex.supersense = props.get('supersense', 0)
     lex.prob = props.get('prob', 0)
 
@@ -55,6 +56,7 @@ cpdef Lexeme init(unicode string, hash_t hashed,
     lex.flags = get_flags(string, upper_pc, title_pc, lower_pc)
     return lex
 
+
 cdef id_t get_string_id(unicode string, StringStore store) except 0:
     cdef bytes byte_string = string.encode('utf8')
     cdef Utf8Str* orig_str = store.intern(<char*>byte_string, len(byte_string))