diff --git a/addons/anonymization/anonymization.py b/addons/anonymization/anonymization.py
index a455bc835ce..c7f9ab016c4 100644
--- a/addons/anonymization/anonymization.py
+++ b/addons/anonymization/anonymization.py
@@ -543,7 +543,7 @@ class ir_model_fields_anonymize_wizard(osv.osv_memory):
             fixes = group(fixes, ('model_name', 'field_name'))
 
             for line in data:
-                table_name = self.pool.get(line['model_id'])._table
+                table_name = self.pool.get(line['model_id'])._table if self.pool.get(line['model_id']) else None
 
                 # check if custom sql exists:
                 key = (line['model_id'], line['field_id'])