diff --git a/docs/source/common/optimizers.rst b/docs/source/common/optimizers.rst
index 249449187e..542ff7965c 100644
--- a/docs/source/common/optimizers.rst
+++ b/docs/source/common/optimizers.rst
@@ -185,7 +185,7 @@ defined in your :meth:`~pytorch_lightning.core.lightning.LightningModule.configu
 .. warning::
    * Before 1.3, Lightning automatically called ``lr_scheduler.step()`` in both automatic and manual optimization. From
      1.3, ``lr_scheduler.step()`` is now for the user to call at arbitrary intervals.
-   * Note that the ``lr_dict`` keys, such as ``"step"`` and ``""interval"``, will be ignored even if they are provided in
+   * Note that the ``lr_dict`` keys, such as ``"step"`` and ``"interval"``, will be ignored even if they are provided in
      your :meth:`~pytorch_lightning.core.lightning.LightningModule.configure_optimizers` during manual optimization.
 
 Here is an example calling ``lr_scheduler.step()`` every step.