diff --git a/docs/en/reference/migrating-schemas.rst b/docs/en/reference/migrating-schemas.rst
index 0b979572b..e59c34327 100644
--- a/docs/en/reference/migrating-schemas.rst
+++ b/docs/en/reference/migrating-schemas.rst
@@ -41,6 +41,8 @@ To create the collections for all the document classes, you can use the
 For a specific document class, you can use the `createDocumentCollection()`
 method with the class name as an argument:
 
+.. code-block:: php
+
     <?php
 
     $schemaManager->createDocumentCollection(Person::class);
@@ -48,6 +50,8 @@ method with the class name as an argument:
 Once the collection is created, you can also set up indexes with ``ensureIndexes``,
 and search indexes with ``createSearchIndexes``:
 
+.. code-block:: php
+
     <?php
 
     $schemaManager->ensureIndexes();