diff --git a/configs/solo/solo_r50_fpn_3x_coco.py b/configs/solo/solo_r50_fpn_3x_coco.py
index 98a9505538c..0d5abbd2f4d 100644
--- a/configs/solo/solo_r50_fpn_3x_coco.py
+++ b/configs/solo/solo_r50_fpn_3x_coco.py
@@ -15,7 +15,7 @@
 
 # training schedule for 3x
 max_epochs = 36
-train_cfg = dict(by_epoch=True, max_epochs=max_epochs)
+train_cfg = dict(max_epochs=max_epochs)
 
 # learning rate
 param_scheduler = [