diff --git a/arkindex/templates/redoc.html b/arkindex/templates/redoc.html
index 979207a30f4d086a801e36c0502f91afe0aa61c5..e98ecb41850dce68e67baf2ad428c9f81ea3602e 100644
--- a/arkindex/templates/redoc.html
+++ b/arkindex/templates/redoc.html
@@ -16,8 +16,8 @@
</style>
</head>
<body>
- <!-- Add ?format=yaml to make ReDoc's download button get a YAML file, not HTML -->
- <redoc spec-url="{% url 'api:openapi-schema' %}?format=yaml"></redoc>
+ <!-- Add ?format=json to make ReDoc's download button get a JSON file, not HTML -->
+ <redoc spec-url="{% url 'api:openapi-schema' %}?format=json"></redoc>
<script src="https://cdn.jsdelivr.net/npm/redoc@next/bundles/redoc.standalone.js"> </script>
</body>
</html>