diff --git a/irun/base.py b/irun/base.py
index 70b20c3..1dea3e9 100644
--- a/irun/base.py
+++ b/irun/base.py
@@ -6,7 +6,6 @@ class IRunException(Exception):
 
 
 class Matchers(str, Enum):
-
     # any matcher: ...
     # e.g: foo(...) => foo(MATCH_ONE)
     MATCH_ONE = "__match_one"
diff --git a/setup.cfg b/setup.cfg
index 6907028..d2ae8ce 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -7,7 +7,7 @@ long_description_content_type = text/markdown
 url = https://github.com/reizio/irun
 author = isidentical
 author_email = isidentical@gmail.com
-license_file = LICENSE.txt
+license_files = LICENSE.txt
 classifiers =
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only