diff --git a/src/box.py b/src/box.py
index 7d1bb98..e9e4ab3 100644
--- a/src/box.py
+++ b/src/box.py
@@ -1,7 +1,7 @@
 from loguru import logger
 import json
 from converters import CONVERTERS
-from dataclasses import dataclass, field
+from dataclasses import dataclass, field, asdict
 
 @dataclass(init=True, kw_only=True)
 class Context:
@@ -13,6 +13,9 @@ class Context:
     mode: str = field(default='off')
     output_temperature: str = field(default='0')
 
+    def __str__(self):
+        return json.dumps(asdict(self))
+
 class Box:
     def __init__(self, box_id, box_config, config):
         logger.info(f"[Box {box_id}] Instantiating")
@@ -99,6 +102,6 @@ class Box:
             logger.info(f"[Box {self.id}] Result published on '{publish_topic}': {result_message}")
 
             context_topic = f"{self.config.CONTEXT_TOPIC_PREFIX}{self.id}"
-            self.mqtt_client.publish(context_topic, repr(self.context))
+            self.mqtt_client.publish(context_topic, str(self.context))
         except Exception as e:
             logger.error(f"[Box {self.id}] Error processing '{topic_key}': {e}")