diff --git a/amlip_py/amlip_py/node/FiwareNode.py b/amlip_py/amlip_py/node/FiwareNode.py
index a632b974..2c36e26d 100644
--- a/amlip_py/amlip_py/node/FiwareNode.py
+++ b/amlip_py/amlip_py/node/FiwareNode.py
@@ -252,7 +252,7 @@ def inference_received(
             }
         }
 
-        self.patch_inference(inference.to_string(), metadata=metadata)
+        self.patch_inference(json.loads(inference.to_string()), metadata=metadata)
 
     def patch_inference(
             self,