diff --git a/timm/models/vitamin.py b/timm/models/vitamin.py
index 18635f603..f8e2a9a1e 100644
--- a/timm/models/vitamin.py
+++ b/timm/models/vitamin.py
@@ -259,16 +259,17 @@ def __init__(
             in_features, 
             hidden_features,
             act_layer = 'gelu',
+            bias = True,
             drop = 0.0,
     ):
         super().__init__()
         norm_layer = partial(get_norm_layer('layernorm'), eps=1e-6)
 
         self.norm = norm_layer(in_features)
-        self.w0 = nn.Linear(in_features, hidden_features)
+        self.w0 = nn.Linear(in_features, hidden_features, bias=bias)
         self.act = create_act_layer(act_layer)
-        self.w1 = nn.Linear(in_features, hidden_features)
-        self.w2 = nn.Linear(hidden_features, in_features)
+        self.w1 = nn.Linear(in_features, hidden_features, bias=bias)
+        self.w2 = nn.Linear(hidden_features, in_features, bias=bias)
 
     def forward(self, x):
         x = self.norm(x)