diff --git a/sam2/modeling/backbones/hieradet.py b/sam2/modeling/backbones/hieradet.py
index 52051ff..973d622 100644
--- a/sam2/modeling/backbones/hieradet.py
+++ b/sam2/modeling/backbones/hieradet.py
@@ -47,7 +47,6 @@ class MultiScaleAttention(nn.Module):
         self.dim = dim
         self.dim_out = dim_out
         self.num_heads = num_heads
-    
         self.q_pool = q_pool
         self.qkv = nn.Linear(dim, dim_out * 3)
         self.proj = nn.Linear(dim_out, dim_out)