diff --git a/modules/automation/automation.py b/modules/automation/automation.py
index 5eda7aa..e8be285 100644
--- a/modules/automation/automation.py
+++ b/modules/automation/automation.py
@@ -187,7 +187,7 @@ class AutomationDocument(ModelSQL, ModelView, Workflow):
         for doc in docs:
             try:
                 logger.info("DATA_TYPE:%s",type(cls.metadata_json))
-                metadata = json.loads(cls.metadata_json)    
+                metadata = json.loads(str(cls.metadata_json))    
                 logger.info("JSON STRUCTURE:%s",metadata)
                 
                 WeightReport = Pool().get('weight.report')