diff --git a/official/cv/maskrcnn/default_config.yaml b/official/cv/maskrcnn/default_config.yaml
index b87bf30d31f79659223ec53654125a50f88ac213..fd2c49c5433e60f6e660eab1bb9ba66131ecc699 100644
--- a/official/cv/maskrcnn/default_config.yaml
+++ b/official/cv/maskrcnn/default_config.yaml
@@ -137,7 +137,7 @@ sgd_momentum: 0.9
 
 # train
 batch_size: 2
-loss_scale: 1
+loss_scale: 1024
 momentum: 0.91
 weight_decay: 0.0001 # 1e-4
 pretrain_epoch_size: 0