diff --git a/jupyter_server/extension/application.py b/jupyter_server/extension/application.py
index 599904e850..1237c35eae 100644
--- a/jupyter_server/extension/application.py
+++ b/jupyter_server/extension/application.py
@@ -65,7 +65,7 @@ def _preparse_command_line(Application):
 class StandaloneApp(JupyterApp):
     """Base class for configurable Jupyter Server Extension Applications.
 
-    StandaloneApp subclasses ire launched directly by calling its
+    StandaloneApp subclasses are launched directly by calling its
     `launch_instance` class method. This method can be set as an
     entry_point in the extensions setup.py
     """