diff --git a/grawlix/arguments.py b/grawlix/arguments.py
index f4cdbf7..470945f 100644
--- a/grawlix/arguments.py
+++ b/grawlix/arguments.py
@@ -2,7 +2,7 @@ from grawlix import __version__
 
 import argparse
 
-def parse_arguments():
+def parse_arguments() -> argparse.Namespace:
     # Help
     parser = argparse.ArgumentParser(
         prog = "grawlix",