diff --git a/CHANGELOG.md b/CHANGELOG.md
index f63e1f5876197..cba3b7a4f7854 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -107,7 +107,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Fixed issue with pickling `CSVLogger` after a call to `CSVLogger.save` ([#10388](https://github.com/PyTorchLightning/pytorch-lightning/pull/10388))
 
 
-- Fixed `extract_batch_size` call only when its required ([#10408](https://github.com/PyTorchLightning/pytorch-lightning/pull/10408))
+- Fixed the call to `extract_batch_size` only when its required ([#10408](https://github.com/PyTorchLightning/pytorch-lightning/pull/10408))
 
 
 
diff --git a/pytorch_lightning/core/lightning.py b/pytorch_lightning/core/lightning.py
index c621b61f01cc9..e4c2613c000eb 100644
--- a/pytorch_lightning/core/lightning.py
+++ b/pytorch_lightning/core/lightning.py
@@ -1651,7 +1651,7 @@ def optimizer_step(
                         pg["lr"] = lr_scale * self.learning_rate
 
                 # update params
-                optimizer.step(clo, batch_sizesure=optimizer_closure)
+                optimizer.step(closure=optimizer_closure)
 
         """
         optimizer.step(closure=optimizer_closure)