diff --git a/fcos_core/modeling/backbone/resnet.py b/fcos_core/modeling/backbone/resnet.py
index 785ca755371401c8b4f82b04c03adef6d61ce73b..b832889057d0846c81bbe8ab8288a1b0a93ed03b 100644
--- a/fcos_core/modeling/backbone/resnet.py
+++ b/fcos_core/modeling/backbone/resnet.py
@@ -296,7 +296,7 @@ class Bottleneck(nn.Module):
                 groups=num_groups,
                 dilation=dilation,
                 deformable_groups=deformable_groups,
-                bias=True
+                bias=False
             )
         else:
             self.conv2 = Conv2d(