diff --git a/beets/mediafile.py b/beets/mediafile.py
index 7d1b07280..f953b9b68 100644
--- a/beets/mediafile.py
+++ b/beets/mediafile.py
@@ -64,7 +64,7 @@ import six
 
 __all__ = ['UnreadableFileError', 'FileTypeError', 'MediaFile']
 
-log = logging.getLogger('beets')
+log = logging.getLogger(__name__)
 
 # Human-readable type names.
 TYPES = {
@@ -134,12 +134,12 @@ def mutagen_call(action, path, func, *args, **kwargs):
     try:
         return func(*args, **kwargs)
     except mutagen.MutagenError as exc:
-        log.debug(u'{} failed: {}', action, six.text_type(exc))
+        log.debug(u'%s failed: %s', action, six.text_type(exc))
         raise UnreadableFileError(path)
     except Exception as exc:
         # Isolate bugs in Mutagen.
-        log.debug(u'{}', traceback.format_exc())
-        log.error(u'uncaught Mutagen exception in {}: {}', action, exc)
+        log.debug(u'%s', traceback.format_exc())
+        log.error(u'uncaught Mutagen exception in %s: %s', action, exc)
         raise MutagenError(path, exc)
 
 
@@ -405,7 +405,7 @@ class Image(object):
             try:
                 type = list(ImageType)[type]
             except IndexError:
-                log.debug(u"ignoring unknown image type index {0}", type)
+                log.debug(u"ignoring unknown image type index %s", type)
                 type = ImageType.other
         self.type = type