diff --git a/metadata_mapper/mappers/mapper.py b/metadata_mapper/mappers/mapper.py
index 116b232ac..7823b44be 100644
--- a/metadata_mapper/mappers/mapper.py
+++ b/metadata_mapper/mappers/mapper.py
@@ -36,7 +36,7 @@ def write_local_mapped_metadata(self, mapped_metadata):
             if not os.path.exists(local_children_path):
                 os.makedirs(local_children_path)
         page = open(page_path, "w+")
-        page.write(json.dumps(mapped_metadata))
+        page.write(json.dumps(mapped_metadata, ensure_ascii=False))
 
     def write_s3_mapped_metadata(self, mapped_metadata):
         s3_client = boto3.client('s3')