diff --git a/src/main/resources/draftv4/schema b/src/main/resources/draftv4/schema
index 85eb502a6..476d01d2f 100644
--- a/src/main/resources/draftv4/schema
+++ b/src/main/resources/draftv4/schema
@@ -28,12 +28,10 @@
     "type": "object",
     "properties": {
         "id": {
-            "type": "string",
-            "format": "uri"
+            "type": "string"
         },
         "$schema": {
-            "type": "string",
-            "format": "uri"
+            "type": "string"
         },
         "title": {
             "type": "string"
@@ -137,6 +135,7 @@
                 }
             ]
         },
+        "format": { "type": "string" },
         "allOf": { "$ref": "#/definitions/schemaArray" },
         "anyOf": { "$ref": "#/definitions/schemaArray" },
         "oneOf": { "$ref": "#/definitions/schemaArray" },
@@ -147,4 +146,4 @@
         "exclusiveMinimum": [ "minimum" ]
     },
     "default": {}
-}
+}
\ No newline at end of file