diff --git a/docs/guide/purity.rst b/docs/guide/purity.rst
index df932a41..edfd9305 100644
--- a/docs/guide/purity.rst
+++ b/docs/guide/purity.rst
@@ -135,7 +135,6 @@ Now let's see how to do it correctly:
         }
 
     def new_dict_and_yield():
-        d = {}
         for i in range(100):
             # Different dict each time.
             yield {