diff --git a/docs/tutorial/1-serialization.md b/docs/tutorial/1-serialization.md
index 5cf16a67f..316a3c255 100644
--- a/docs/tutorial/1-serialization.md
+++ b/docs/tutorial/1-serialization.md
@@ -201,7 +201,7 @@ Open the file `snippets/serializers.py` again, and edit the `SnippetSerializer`
     class SnippetSerializer(serializers.ModelSerializer):
         class Meta:
             model = Snippet
-            fields = ('pk', 'title', 'code', 'linenos', 'language', 'style')
+            fields = ('id', 'title', 'code', 'linenos', 'language', 'style')