diff --git a/tilecloud_chain/USAGE.rst b/tilecloud_chain/USAGE.rst
index ab74953f8..83cabeeef 100644
--- a/tilecloud_chain/USAGE.rst
+++ b/tilecloud_chain/USAGE.rst
@@ -301,7 +301,7 @@ Logging
 
 Tile logs can be saved to a PostgreSQL database with this configuration:
 
-..code:: yaml
+.. code:: yaml
 
     logging:
         database:
diff --git a/tilecloud_chain/schema.json b/tilecloud_chain/schema.json
index 2c9e53f09..3e402e71c 100644
--- a/tilecloud_chain/schema.json
+++ b/tilecloud_chain/schema.json
@@ -777,10 +777,10 @@
       "description": "The layer definition, see https://github.com/camptocamp/tilecloud-chain/blob/master/tilecloud_chain/USAGE.rst#configure-layers",
       "anyOf": [
         {
-          "$ref": "#definitions/layer_wms"
+          "$ref": "#/definitions/layer_wms"
         },
         {
-          "$ref": "#definitions/layer_mapnik"
+          "$ref": "#/definitions/layer_mapnik"
         }
       ]
     },