diff --git a/pyroengine/engine.py b/pyroengine/engine.py
index 845b7c1e..171be304 100644
--- a/pyroengine/engine.py
+++ b/pyroengine/engine.py
@@ -256,7 +256,7 @@ def _update_states(self, frame: Image.Image, preds: np.ndarray, cam_key: str) ->
             output_predictions = output_predictions[:5, :]  # max 5 bbox
 
         self._states[cam_key]["last_predictions"].append(
-            (frame, preds, str(json.dumps(output_predictions.tolist())), datetime.utcnow().isoformat(), False)
+            (frame, preds, json.dumps(output_predictions.tolist()), datetime.utcnow().isoformat(), False)
         )
 
         # update state
@@ -390,7 +390,7 @@ def _process_alerts(self) -> None:
                             lat=self.latitude,
                             lon=self.longitude,
                             media_id=self._alerts[0]["media_id"],
-                            # localization=self._alerts[0]["localization"],
+                            localization=self._alerts[0]["localization"],
                         )
                         .json()["id"]
                     )