diff --git a/pysot/core/config.py b/pysot/core/config.py
index 2036123ad0053d32d27181f279025e371b6571d2..90959a08f7cf63a7ac10c8bfd640904e831f12a7 100644
--- a/pysot/core/config.py
+++ b/pysot/core/config.py
@@ -135,7 +135,7 @@ __C.DATASET.NEG = 0.2
 # improve tracking performance for otb100
 __C.DATASET.GRAY = 0.0
 
-__C.DATASET.NAMES = ('VID', 'COCO', 'DET', 'YOUTUBEBB', 'MOT')
+__C.DATASET.NAMES = ('VID', 'COCO', 'DET', 'YOUTUBEBB')
 
 __C.DATASET.VID = CN()
 __C.DATASET.VID.ROOT = 'training_dataset/vid/crop511'