diff --git a/demo/inference_on_a_image.py b/demo/inference_on_a_image.py
index 62546d7..207227b 100644
--- a/demo/inference_on_a_image.py
+++ b/demo/inference_on_a_image.py
@@ -143,7 +143,7 @@ if __name__ == "__main__":
     text_prompt = args.text_prompt
     output_dir = args.output_dir
     box_threshold = args.box_threshold
-    text_threshold = args.box_threshold
+    text_threshold = args.text_threshold
 
     # make dir
     os.makedirs(output_dir, exist_ok=True)