diff --git a/models.py b/models.py
index c3798d5b..314382fb 100755
--- a/models.py
+++ b/models.py
@@ -77,7 +77,7 @@ def create_modules(module_defs, img_size):
 
             # Initialize preceding Conv2d() detection bias to -5 (https://arxiv.org/pdf/1708.02002.pdf section 3.3)
             bias = module_list[-1][0].bias.view(len(mask), -1)  # 255 to 3x85
-            bias[:, 4:] -= - 5
+            bias[:, 4:] -= 5
             module_list[-1][0].bias = torch.nn.Parameter(bias.view(-1))
 
         else: