diff --git a/rwx/os/debian.py b/rwx/os/debian.py
index 98c8928..5cefdaa 100644
--- a/rwx/os/debian.py
+++ b/rwx/os/debian.py
@@ -7,5 +7,8 @@ class Debian(OS):
     """Debian operating system."""
 
     def get_name(self) -> str:
-        """Return name."""
+        """Return name.
+
+        :rtype: str
+        """
         return "Debian"