diff --git a/LICENSE b/LICENSE
index 33c3829..cad22b8 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018 Renan
+Copyright (c) 2018 Renan Vieira
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/dev-requirements.txt b/requirements/dev-requirements.txt
similarity index 100%
rename from dev-requirements.txt
rename to requirements/dev-requirements.txt
diff --git a/requirements.txt b/requirements/requirements.txt
similarity index 100%
rename from requirements.txt
rename to requirements/requirements.txt
diff --git a/test-requirements.txt b/requirements/test-requirements.txt
similarity index 100%
rename from test-requirements.txt
rename to requirements/test-requirements.txt
diff --git a/setup.py b/setup.py
index ef0deba..b02b438 100644
--- a/setup.py
+++ b/setup.py
@@ -66,7 +66,7 @@ def parse_requirements_file(req):
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7'
     ],
-    install_requires=parse_requirements_file("requirements.txt"),
+    install_requires=parse_requirements_file("requirements/requirements.txt"),
     test_suite='tests/phoenix_leter_tests',
-    tests_require=parse_requirements_file("test-requirements.txt"),
+    tests_require=parse_requirements_file("requirements/test-requirements.txt"),
 )
diff --git a/src/phoenix_letter/main.py b/src/phoenix_letter/main.py
index 3e85ee1..5d2c5c5 100644
--- a/src/phoenix_letter/main.py
+++ b/src/phoenix_letter/main.py
@@ -91,4 +91,4 @@ def main(args=None):
 
 
 if __name__ == "__main__":
-    main(sys.argv[1:])
+    sys.exit(main(sys.argv[1:]))