diff --git a/schema.json b/schema.json
index 902a39d..7a2b7c8 100644
--- a/schema.json
+++ b/schema.json
@@ -251,8 +251,7 @@
       "type": "array",
       "items": {
         "$ref": "#/definitions/linkage"
-      },
-      "uniqueItems": true
+      }
     },
     "empty": {
       "description": "Describes an empty to-one relationship.",