diff --git a/rich/json.py b/rich/json.py
index bc141933a..214cd32b7 100644
--- a/rich/json.py
+++ b/rich/json.py
@@ -32,7 +32,7 @@ def from_data(cls, data: Any, indent: int = 4, highlight: bool = True) -> "JSON"
                 indent (int, optional): Number of characters to indent by. Defaults to True.
                 highlight (bool, optional): Enable highlighting. Defaults to True.
         """
-        json_instance = cls.__new__(cls)
+        json_instance: "JSON" = cls.__new__(cls)
         json = dumps(data, indent=indent)
         highlighter = JSONHighlighter() if highlight else NullHighlighter()
         json_instance.text = highlighter(json)