diff --git a/doc/json_schema.json b/doc/json_schema.json
index ac3bfad9c..dc43ff932 100644
--- a/doc/json_schema.json
+++ b/doc/json_schema.json
@@ -23,7 +23,7 @@
             "default": 0
         },
         "format": {
-            "description": "Output format of the module",
+            "description": "Output format of the module. See `-h <module>-format` for detail",
             "type": "string"
         },
         "outputColor": {