diff --git a/Lib/ufo2ft/featureWriters/variableKernWriter.py b/Lib/ufo2ft/featureWriters/variableKernWriter.py
index b268c3563..f08b9e466 100644
--- a/Lib/ufo2ft/featureWriters/variableKernWriter.py
+++ b/Lib/ufo2ft/featureWriters/variableKernWriter.py
@@ -34,7 +34,8 @@ def getKerningGroups(designspace, glyphSet=None):
                 if name.startswith(SIDE1_PREFIX):
                     if name in side1Groups and side1Groups[name] != members:
                         log.warning(
-                            "incompatible left groups: %s was previously %s, %s tried to make it %s",
+                            "incompatible left groups: %s was previously %s,"
+                            " %s tried to make it %s",
                             name,
                             side1Groups[name],
                             font,
@@ -45,7 +46,8 @@ def getKerningGroups(designspace, glyphSet=None):
                 elif name.startswith(SIDE2_PREFIX):
                     if name in side2Groups and side2Groups[name] != members:
                         log.warning(
-                            "incompatible right groups: %s was previously %s, %s tried to make it %s",
+                            "incompatible right groups: %s was previously %s,"
+                            " %s tried to make it %s",
                             name,
                             side2Groups[name],
                             font,
diff --git a/tests/featureWriters/variableFeatureWriter_test.py b/tests/featureWriters/variableFeatureWriter_test.py
index 964da6e6c..a088bf459 100644
--- a/tests/featureWriters/variableFeatureWriter_test.py
+++ b/tests/featureWriters/variableFeatureWriter_test.py
@@ -25,5 +25,5 @@ def test_variable_features(FontClass):
             } curs;
 
         } curs;
-"""
+"""  # noqa: B950
     )
diff --git a/tests/integration_test.py b/tests/integration_test.py
index 11c49f5b0..378471f46 100644
--- a/tests/integration_test.py
+++ b/tests/integration_test.py
@@ -250,7 +250,7 @@ def test_debugFeatureFile(self, designspace):
                 } mark2base;
 
             } mark;
-        """
+        """  # noqa: B950
         )
 
     @pytest.mark.parametrize(