diff --git a/ckanext/alisea/plugin.py b/ckanext/alisea/plugin.py
index 842520a..163f134 100644
--- a/ckanext/alisea/plugin.py
+++ b/ckanext/alisea/plugin.py
@@ -1,9 +1,13 @@
 import ckan.plugins as plugins
 import ckan.plugins.toolkit as toolkit
-import json
 from ckan.lib.plugins import DefaultTranslation
 from collections import OrderedDict
 from ckanext.alisea import helpers as h
+import json
+import ast
+import logging
+
+log = logging.getLogger(__name__)
 
 
 class AliseaPlugin(plugins.SingletonPlugin, DefaultTranslation):
@@ -109,9 +113,48 @@ def _before_index_dump_dicts(self, data_dict):
                 data_dict[key] = json.dumps(value)
         return data_dict
 
+    def convert_stringified_lists(self, data_dict):
+        """
+        Converts stringified lists in the data dictionary to actual lists.
+    
+        Args:
+            data_dict (dict): The data dictionary to be processed.
+    
+        Returns:
+            dict: The processed data dictionary with actual lists.
+    
+        This function iterates over the items in the data dictionary and converts
+        any stringified lists (strings that start with '[' and end with ']') into
+        actual lists. Keys that start with 'extras_', 'res_', or are 'validated_data_dict'
+        are excluded from this conversion.
+        """
+        # Excluded items
+        excluded_keys = [
+            key for key in data_dict 
+            if key.startswith('extras_') or key.startswith('res_') or key == 'validated_data_dict'
+        ]
+    
+        # Filter data dictionary
+        filter_data_dict = {
+            key: value for key, value in data_dict.items()
+            if key not in excluded_keys
+        }
+    
+        for key, value in filter_data_dict.items():
+            if isinstance(value, str) and value.startswith('[') and value.endswith(']'):
+                try:
+                    data_dict[key] = ast.literal_eval(value)
+                except (ValueError, SyntaxError) as e:
+                    log.error("Error converting stringified list for key '%s': %s", key, e)
+    
+        return data_dict
+
 
     def before_dataset_index(self, data_dict):
+        
+        data_dict = self._before_index_dump_dicts(data_dict)
+        data_dict = self.convert_stringified_lists(data_dict)
         data_dict['agroecology_category'] = json.loads(json.dumps(data_dict.get('agroecology_category', '[]')))
         data_dict['agroecology_keyword'] = json.loads(json.dumps(data_dict.get('agroecology_keyword', '[]')))
-        data_dict = self._before_index_dump_dicts(data_dict)
+
         return data_dict