diff --git a/tests/pretty_format_json_test.py b/tests/pretty_format_json_test.py
index 8d82d74..bf7a16f 100644
--- a/tests/pretty_format_json_test.py
+++ b/tests/pretty_format_json_test.py
@@ -57,7 +57,10 @@
 
 
 def test_non_ascii_main():
-    ret = main(['--no-ensure-ascii', get_resource_path('non_ascii_pretty_formatted_json.json')])
+    ret = main((
+        '--no-ensure-ascii',
+        get_resource_path('non_ascii_pretty_formatted_json.json'),
+    ))
     assert ret == 0
 
 
@@ -79,17 +82,23 @@
 
 
 def test_orderfile_get_pretty_format():
-    ret = main(['--top-keys=alist', get_resource_path('pretty_formatted_json.json')])
+    ret = main((
+        '--top-keys=alist', get_resource_path('pretty_formatted_json.json'),
+    ))
     assert ret == 0
 
 
 def test_not_orderfile_get_pretty_format():
-    ret = main(['--top-keys=blah', get_resource_path('pretty_formatted_json.json')])
+    ret = main((
+        '--top-keys=blah', get_resource_path('pretty_formatted_json.json'),
+    ))
     assert ret == 1
 
 
 def test_top_sorted_get_pretty_format():
-    ret = main(['--top-keys=01-alist,alist', get_resource_path('top_sorted_json.json')])
+    ret = main((
+        '--top-keys=01-alist,alist', get_resource_path('top_sorted_json.json'),
+    ))
     assert ret == 0