diff --git a/pre_commit/clientlib/validate_base.py b/pre_commit/clientlib/validate_base.py
index adcfc641..665ec9b9 100644
--- a/pre_commit/clientlib/validate_base.py
+++ b/pre_commit/clientlib/validate_base.py
@@ -51,7 +51,9 @@ def get_validator(
             jsonschema.validate(obj, json_schema)
         except jsonschema.exceptions.ValidationError as e:
             raise exception_type(
-                'Invalid content: {0}\n{1}'.format(os.path.relpath(filename), e),
+                'Invalid content: {0}\n{1}'.format(
+                    os.path.relpath(filename), e
+                ),
             )
 
         obj = apply_defaults(obj, json_schema)
diff --git a/tox.ini b/tox.ini
index ca14ff82..87082d9e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,6 +23,3 @@ deps =
     sphinx
 changedir = docs
 commands = sphinx-build -b html -d build/doctrees source build/html
-
-[flake8]
-max-line-length=131