diff --git a/configs/mot/fairmot/_base_/fairmot_reader_1088x608.yml b/configs/mot/fairmot/_base_/fairmot_reader_1088x608.yml
index 5c0d4824a83cf0d82d6f2be59a99c63ca13d22e1..43170363d0fe550840d71a47382a9f8c4cb0f5ed 100644
--- a/configs/mot/fairmot/_base_/fairmot_reader_1088x608.yml
+++ b/configs/mot/fairmot/_base_/fairmot_reader_1088x608.yml
@@ -34,7 +34,6 @@ TestMOTReader:
   inputs_def:
     image_shape: [3, 608, 1088]
   sample_transforms:
-    - Decode: {to_rgb: False}
     - LetterBoxResize: {target_size: [608, 1088]}
     - NormalizeImage: {mean: [0, 0, 0], std: [1, 1, 1]}
     - Permute: {to_rgb: True}