diff --git a/fastchat/serve/gradio_block_arena_vision_anony.py b/fastchat/serve/gradio_block_arena_vision_anony.py
index 18361510b..28ec9d645 100644
--- a/fastchat/serve/gradio_block_arena_vision_anony.py
+++ b/fastchat/serve/gradio_block_arena_vision_anony.py
@@ -376,7 +376,7 @@ def add_text(
 
     text = text[:BLIND_MODE_INPUT_CHAR_LEN_LIMIT]  # Hard cut-off
     post_processed_text = _prepare_text_with_pdf(text, pdfs)
-    
+
     for i in range(num_sides):
         post_processed_text = _prepare_text_with_image(
             states[i], post_processed_text, images, csam_flag=csam_flag