diff --git a/src/dcr/main.py b/src/dcr/main.py
index 36ef7a9..abbd700 100644
--- a/src/dcr/main.py
+++ b/src/dcr/main.py
@@ -25,3 +25,6 @@ def main() -> int:
             print("Unknown command")
 
     return 0
+
+if __name__ == "__main__":
+    raise SystemExit(main())
\ No newline at end of file