diff --git a/lib/patrix/data.h b/lib/patrix/data.h
index f68ecb3..799180a 100644
--- a/lib/patrix/data.h
+++ b/lib/patrix/data.h
@@ -53,10 +53,10 @@ public:
     if (usage == 0 || !isTimeSet()) {
       return;
     }
-    JsonDocument json;
+    JsonDocument doc;
+    JsonObject json = doc.to<JsonObject>();
     json["timestamp"] = correctTime(bufferRead->timestamp);
-    JsonObject data = json["data"].to<JsonObject>();
-    bufferRead->data.toJson(data);
+    bufferRead->data.toJson(json);
     if (mqttPublishData(json)) {
       bufferRead = (bufferRead - buffer + 1) % size + buffer;
       usage--;