From 8c4d1b46ce6f8227065dce208f4f7ba3dd56ae62 Mon Sep 17 00:00:00 2001
From: Matthew Honnibal <honnibal+gh@gmail.com>
Date: Tue, 1 Nov 2016 13:27:44 +0100
Subject: [PATCH] Fix variable error in Span

---
 spacy/tokens/span.pyx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spacy/tokens/span.pyx b/spacy/tokens/span.pyx
index d3958242e..c55de3c3e 100644
--- a/spacy/tokens/span.pyx
+++ b/spacy/tokens/span.pyx
@@ -31,7 +31,7 @@ cdef class Span:
         Returns:
             Span The newly constructed object.
         '''
-        if not (0 <= start <= end <= len(tokens)):
+        if not (0 <= start <= end <= len(doc)):
             raise IndexError
 
         self.doc = doc