diff --git a/flake8_aaa/__init__.py b/flake8_aaa/__init__.py
index <HASH>..<HASH> 100644
--- a/flake8_aaa/__init__.py
+++ b/flake8_aaa/__init__.py
@@ -1,5 +1,5 @@
 from .checker import Checker
 
 __all__ = [
-    Checker,
+    'Checker',
 ]
Fix lint: __all__ as strings not classes