diff --git a/tests/rules/test_brew_link.py b/tests/rules/test_brew_link.py
index 5e0f1462..26f42aff 100644
--- a/tests/rules/test_brew_link.py
+++ b/tests/rules/test_brew_link.py
@@ -29,7 +29,7 @@ def test_match(stderr, script):
 
 @pytest.mark.parametrize('script', ['brew link coreutils'])
 def test_not_match(script):
-    stderr=''
+    stderr = ''
     assert not match(Command(script=script, stderr=stderr))
 
 
diff --git a/tests/rules/test_brew_uninstall.py b/tests/rules/test_brew_uninstall.py
index e01ffc1e..cba0d424 100644
--- a/tests/rules/test_brew_uninstall.py
+++ b/tests/rules/test_brew_uninstall.py
@@ -22,7 +22,7 @@ def test_match(stdout, script):
 
 @pytest.mark.parametrize('script', ['brew remove gnuplot'])
 def test_not_match(script):
-    stdout='Uninstalling /usr/local/Cellar/gnuplot/5.0.4_1... (44 files, 2.3M)\n'
+    stdout = 'Uninstalling /usr/local/Cellar/gnuplot/5.0.4_1... (44 files, 2.3M)\n'
     assert not match(Command(script=script, stdout=stdout))