diff --git a/onnxmltools/convert/lightgbm/operator_converters/LightGbm.py b/onnxmltools/convert/lightgbm/operator_converters/LightGbm.py
index f495919e..47c1a8b5 100644
--- a/onnxmltools/convert/lightgbm/operator_converters/LightGbm.py
+++ b/onnxmltools/convert/lightgbm/operator_converters/LightGbm.py
@@ -15,7 +15,7 @@
 
 def has_tqdm():
     try:
-        from tqdm import tqdm
+        from tqdm import tqdm  # noqa
         return True
     except ImportError:
         return False