diff --git a/sort.py b/sort.py
index 52b55da..caa2ceb 100644
--- a/sort.py
+++ b/sort.py
@@ -32,7 +32,7 @@
 @jit
 def iou(bb_test,bb_gt):
   """
-  Computes IUO between two bboxes in the form [x1,y1,x2,y2]
+  Computes IOU between two bboxes in the form [x1,y1,x2,y2]
   """
   xx1 = np.maximum(bb_test[0], bb_gt[0])
   yy1 = np.maximum(bb_test[1], bb_gt[1])