diff --git a/data/tree.json b/data/tree.json
index 6341d1460e19b20affc53ca439c01adb9250b48b..f29071698d34a6b37aa35ff2eb67d63dc3732fec 100644
--- a/data/tree.json
+++ b/data/tree.json
@@ -324,7 +324,8 @@
                       "keywords": [],
                       "children": [],
                       "keywords_must": [
-                        "python"
+                        "python",
+                        "PEP8"
                       ],
                       "keywords_forbid": []
                     }