diff --git a/configs/face_detection/_base_/blazeface.yml b/configs/face_detection/_base_/blazeface.yml
index 5d929613dee66666d589171bceb048e48c5a61d0..469aa9c4ca067e3dc38a6bba1832d8050e30b19e 100644
--- a/configs/face_detection/_base_/blazeface.yml
+++ b/configs/face_detection/_base_/blazeface.yml
@@ -17,7 +17,6 @@ FaceHead:
 
 SSDLoss:
   overlap_threshold: 0.35
-  neg_overlap: 0.35
 
 AnchorGeneratorSSD:
   steps: [8., 16.]