diff --git a/deploy/configs/inference_rec.yaml b/deploy/configs/inference_rec.yaml
index b821ebe54db2f6297fbdb74bb038df41dccd7529..097016d20786b22318ec6840b877cd06887befdb 100644
--- a/deploy/configs/inference_rec.yaml
+++ b/deploy/configs/inference_rec.yaml
@@ -20,7 +20,7 @@ RecPreProcess:
         interpolation: bilinear
         backend: cv2
     - NormalizeImage:
-        scale: 1.0/255.0
+        scale: 0.00392157
         mean: [0.485, 0.456, 0.406]
         std: [0.229, 0.224, 0.225]
         order: hwc