diff --git a/doctr/models/modules/transformer/pytorch.py b/doctr/models/modules/transformer/pytorch.py
index 63ad346c2f..99841b1fb4 100644
--- a/doctr/models/modules/transformer/pytorch.py
+++ b/doctr/models/modules/transformer/pytorch.py
@@ -37,7 +37,7 @@ def forward(self, x: torch.Tensor) -> torch.Tensor:
         Returns:
             positional embeddings (batch, max_len, d_model)
         """
-        x = x + self.pe[:, : x.size(1)]  # type: ignore
+        x = x + self.pe[:, : x.size(1)]  # type: ignore[index]
         return self.dropout(x)