diff --git a/serializer/custom_normalizer.rst b/serializer/custom_normalizer.rst
index 276c618b8ac..d6ba66f89b6 100644
--- a/serializer/custom_normalizer.rst
+++ b/serializer/custom_normalizer.rst
@@ -3,7 +3,7 @@ How to Create your Custom Normalizer
 
 The :doc:`Serializer component </serializer>` uses normalizers to transform
 any data into an array. The component provides several
-ref:`built-in normalizers <serializer-built-in-normalizers>` but you may
+:ref:`built-in normalizers <serializer-built-in-normalizers>` but you may
 need to create your own normalizer to transform an unsupported data
 structure.