diff --git a/reference/forms/types/checkbox.rst b/reference/forms/types/checkbox.rst
index aeefb915ccf..e39c393dae7 100644
--- a/reference/forms/types/checkbox.rst
+++ b/reference/forms/types/checkbox.rst
@@ -60,8 +60,6 @@ These options inherit from the :doc:`form </reference/forms/types/form>` type:
 
 .. include:: /reference/forms/types/options/data.rst.inc
 
-.. include:: /reference/forms/types/options/empty_data.rst.inc
-
 .. include:: /reference/forms/types/options/required.rst.inc
 
 .. include:: /reference/forms/types/options/label.rst.inc
diff --git a/reference/forms/types/collection.rst b/reference/forms/types/collection.rst
index 1dfcc037f35..9f442d2fda8 100644
--- a/reference/forms/types/collection.rst
+++ b/reference/forms/types/collection.rst
@@ -365,4 +365,4 @@ error_bubbling
 
 .. include:: /reference/forms/types/options/mapped.rst.inc
 
-.. include:: /reference/forms/type/options/cascade_validation.rst.inc
+.. include:: /reference/forms/types/options/cascade_validation.rst.inc
diff --git a/reference/forms/types/options/checkbox_empty_data.rst.inc b/reference/forms/types/options/checkbox_empty_data.rst.inc
index 8143ad364ce..d7a09ba3b7b 100644
--- a/reference/forms/types/options/checkbox_empty_data.rst.inc
+++ b/reference/forms/types/options/checkbox_empty_data.rst.inc
@@ -6,4 +6,4 @@ empty_data
 This option determines what value the field will return when the ``empty_value``
 choice is selected.
 In checkbox, the value of ``empty_data`` is overriden by the value returned by
-the data transformer (see :doc:`/cookbook/form/data_transformers.rst`).
+the data transformer (see :doc:`/cookbook/form/data_transformers`).