diff --git a/en/cookbook/advanced-field-value-conversion-using-custom-mapping-types.rst b/en/cookbook/advanced-field-value-conversion-using-custom-mapping-types.rst
index 73f1b10a8..5b79d2c4d 100644
--- a/en/cookbook/advanced-field-value-conversion-using-custom-mapping-types.rst
+++ b/en/cookbook/advanced-field-value-conversion-using-custom-mapping-types.rst
@@ -5,7 +5,7 @@ Advanced field value conversion using custom mapping types
 
 When creating entities, you sometimes have the need to transform field values
 before they are saved to the database. In Doctrine you can use Custom Mapping 
-Types to solve this (see: :ref:`reference-basic_mapping-custom_mapping_types`).
+Types to solve this (see: :ref:`reference-basic-mapping-custom-mapping-types`).
 
 There are several ways to achieve this: converting the value inside the Type
 class, converting the value on the database-level or a combination of both.
diff --git a/en/reference/basic-mapping.rst b/en/reference/basic-mapping.rst
index 146c71d6f..90970de2e 100644
--- a/en/reference/basic-mapping.rst
+++ b/en/reference/basic-mapping.rst
@@ -300,7 +300,7 @@ list:
 -  ``scale``: (optional, default 0) The scale for a decimal (exact
    numeric) column. (Applies only if a decimal column is used.)
 
-.. _reference-basic_mapping-custom_mapping_types:
+.. _reference-basic-mapping-custom-mapping-types:
 
 Custom Mapping Types
 --------------------