diff --git a/src/black_primer/primer.json b/src/black_primer/primer.json
index 75469ad..5017a56 100644
--- a/src/black_primer/primer.json
+++ b/src/black_primer/primer.json
@@ -112,7 +112,7 @@
     },
     "tox": {
       "cli_arguments": [],
-      "expect_formatting_changes": true,
+      "expect_formatting_changes": false,
       "git_clone_url": "https://github.com/tox-dev/tox.git",
       "long_checkout": false,
       "py_versions": ["all"]