diff --git a/timm/models/davit.py b/timm/models/davit.py
index 61eeba9c..0d9aff7b 100644
--- a/timm/models/davit.py
+++ b/timm/models/davit.py
@@ -440,7 +440,7 @@ class DaViT(nn.Module):
                 ) for layer_id, item in enumerate(block_param)
             ])
             
-            main_blocks.append((f'block.{block_id}', block))
+            main_blocks.add_module(f'block.{block_id}', block)
             
             self.feature_info += [dict(num_ch=self.embed_dims[block_id], reduction = 2, module=f'block.{block_id}')]
         self.main_blocks = nn.ModuleList(main_blocks)