diff --git a/tests/test_flake8.py b/tests/test_flake8.py
new file mode 100644
index 0000000..6035704
--- /dev/null
+++ b/tests/test_flake8.py
@@ -0,0 +1,19 @@
+import pathlib
+import unittest
+
+from flake8.api import legacy as flake8
+
+test_modules = ['rsa', 'tests']
+
+
+class Flake8RunnerTest(unittest.TestCase):
+    def test_run_flake8(self):
+        proj_root = pathlib.Path(__file__).parent.parent
+        paths = [str(proj_root / dirname) for dirname in test_modules]
+
+        style_guide = flake8.get_style_guide()
+        report = style_guide.check_files(paths)
+
+        errors = report.get_statistics('')
+        if errors:
+            self.fail('\n'.join(['Flake8 errors:'] + errors))