diff --git a/pytorch_lightning/utilities/parsing.py b/pytorch_lightning/utilities/parsing.py
index 467f50bbd5330..e535d52847600 100644
--- a/pytorch_lightning/utilities/parsing.py
+++ b/pytorch_lightning/utilities/parsing.py
@@ -243,7 +243,7 @@ def save_hyperparameters(
         if isinstance(init_args[k], nn.Module):
             rank_zero_warn(
                 f"Attribute {k!r} is an instance of `nn.Module` and is already saved during checkpointing."
-                f" It is recommended to ignore them using `self.save_hyperparameters(ignore=[{k}!r])`."
+                f" It is recommended to ignore them using `self.save_hyperparameters(ignore=[{k!r}])`."
             )
 
     if not args: