diff --git a/configs/det/det_r50_vd_sast_icdar15.yml b/configs/det/det_r50_vd_sast_icdar15.yml
index a225552896..e1bf6fad0c 100755
--- a/configs/det/det_r50_vd_sast_icdar15.yml
+++ b/configs/det/det_r50_vd_sast_icdar15.yml
@@ -93,7 +93,7 @@ Eval:
           channel_first: False
       - DetLabelEncode: # Class handling label
       - DetResizeForTest:
-          resize_long: 768
+          resize_long: 1536
       - NormalizeImage:
           scale: 1./255.
           mean: [0.485, 0.456, 0.406]