diff --git a/setup.py b/setup.py
index 96f5ac7..2572d6e 100644
--- a/setup.py
+++ b/setup.py
@@ -44,6 +44,7 @@ if __name__ == "__main__":
             "appdirs",
             "argcomplete",
             "colorama",
+            "flake8",
             "hjson",
             "yapf"
         ],