diff --git a/nanodet/model/arch/one_stage_detector.py b/nanodet/model/arch/one_stage_detector.py
index 90aa3f6f3..8a0f61a81 100644
--- a/nanodet/model/arch/one_stage_detector.py
+++ b/nanodet/model/arch/one_stage_detector.py
@@ -60,7 +60,7 @@ def inference(self, meta):
             time2 = time.time()
             print("forward time: {:.3f}s".format((time2 - time1)), end=" | ")
             results = self.head.post_process(preds, meta)
-            
+
             if is_cuda_available:
                 torch.cuda.synchronize()