diff --git a/x-pack/auditbeat/tests/system/test_exports.py b/x-pack/auditbeat/tests/system/test_exports.py
index 920f2d20ba6..9aa546c93d9 100644
--- a/x-pack/auditbeat/tests/system/test_exports.py
+++ b/x-pack/auditbeat/tests/system/test_exports.py
@@ -8,5 +8,6 @@
 from auditbeat_xpack import *
 from beat import common_tests
 
+
 class Test(AuditbeatXPackTest, common_tests.TestExportsMixin):
     pass
diff --git a/x-pack/metricbeat/tests/system/test_xpack_base.py b/x-pack/metricbeat/tests/system/test_xpack_base.py
index 75eeafd0ed9..ae19590dd24 100644
--- a/x-pack/metricbeat/tests/system/test_xpack_base.py
+++ b/x-pack/metricbeat/tests/system/test_xpack_base.py
@@ -4,5 +4,6 @@
 import test_base
 from beat import common_tests
 
+
 class Test(xpack_metricbeat.XPackTest, test_base.Test, common_tests.TestExportsMixin):
     pass