diff --git a/olmocr/train/dataloader.py b/olmocr/train/dataloader.py
index 66d93da..f19c84b 100644
--- a/olmocr/train/dataloader.py
+++ b/olmocr/train/dataloader.py
@@ -354,7 +354,7 @@ class JSONOutputFormat(PipelineStep):
             "is_table": page_data.is_table,
             "is_diagram": page_data.is_diagram,
             "natural_text": page_data.natural_text
-        }, ensure_ascii=True)
+        }, ensure_ascii=False)
 
         return sample