diff --git a/iou_tracker.py b/iou_tracker.py
index 12cd6bb..cbcd483 100644
--- a/iou_tracker.py
+++ b/iou_tracker.py
@@ -7,7 +7,7 @@
 
 from time import time
 
-from util import load_mot, iou
+from iou_util import load_mot, iou
 
 
 def track_iou(detections, sigma_l, sigma_h, sigma_iou, t_min):
diff --git a/util.py b/iou_util.py
similarity index 100%
rename from util.py
rename to iou_util.py