diff --git a/mopidy/core.py b/mopidy/core.py
index 118ed99a..b3ce9070 100644
--- a/mopidy/core.py
+++ b/mopidy/core.py
@@ -118,5 +118,5 @@ def stop_frontends():
     for frontend_class_name in settings.FRONTENDS:
         try:
             stop_actors_by_class(get_class(frontend_class_name))
-        except OptionalDependencyError as e:
+        except OptionalDependencyError:
             pass
diff --git a/mopidy/utils/process.py b/mopidy/utils/process.py
index 734b20c5..758f8943 100644
--- a/mopidy/utils/process.py
+++ b/mopidy/utils/process.py
@@ -27,7 +27,7 @@ def exit_handler(signum, frame):
 
 def stop_actors_by_class(klass):
     actors = ActorRegistry.get_by_class(klass)
-    logger.debug('Stopping %d instance(s) of %s', len(actors), klass.__name__)
+    logger.debug(u'Stopping %d instance(s) of %s', len(actors), klass.__name__)
     for actor in actors:
         actor.stop()