diff --git a/mopidy/audio/actor.py b/mopidy/audio/actor.py
index 92abe4bc..ea452c22 100644
--- a/mopidy/audio/actor.py
+++ b/mopidy/audio/actor.py
@@ -238,7 +238,7 @@ class _Handler(object):
                 msg.src == self._element):
             self.on_playbin_state_changed(*msg.parse_state_changed())
         elif msg.type == Gst.MessageType.BUFFERING:
-            self.on_buffering(msg.parse_buffering(), msg.structure)
+            self.on_buffering(msg.parse_buffering(), msg.get_structure())
         elif msg.type == Gst.MessageType.EOS:
             self.on_end_of_stream()
         elif msg.type == Gst.MessageType.ERROR:
@@ -260,8 +260,8 @@ class _Handler(object):
             # Handle stream changed messages when they reach our output bin.
             # If we listen for it on the bus we get one per tee branch.
             msg = event.parse_sink_message()
-            if msg.structure.has_name('playbin-stream-changed'):
-                self.on_stream_changed(msg.structure['uri'])
+            if msg.get_structure().has_name('playbin-stream-changed'):
+                self.on_stream_changed(msg.get_structure().get_string('uri'))
         return True
 
     def on_playbin_state_changed(self, old_state, new_state, pending_state):
@@ -303,7 +303,7 @@ class _Handler(object):
 
     def on_buffering(self, percent, structure=None):
         if structure and structure.has_field('buffering-mode'):
-            if structure['buffering-mode'] == Gst.BUFFERING_LIVE:
+            if structure.get_enum('buffering-mode') == Gst.BufferingMode.LIVE:
                 return  # Live sources stall in paused.
 
         level = logging.getLevelName('TRACE')
diff --git a/mopidy/audio/scan.py b/mopidy/audio/scan.py
index 0eb4067e..fbe80585 100644
--- a/mopidy/audio/scan.py
+++ b/mopidy/audio/scan.py
@@ -159,16 +159,16 @@ def _process(pipeline, timeout_ms):
             if GstPbutils.is_missing_plugin_message(message):
                 missing_message = message
         elif message.type == Gst.MessageType.APPLICATION:
-            if message.structure.get_name() == 'have-type':
-                mime = message.structure['caps'].get_name()
+            if message.get_structure().get_name() == 'have-type':
+                mime = message.get_structure()['caps'].get_name()
                 if mime.startswith('text/') or mime == 'application/xml':
                     return tags, mime, have_audio
-            elif message.structure.get_name() == 'have-audio':
+            elif message.get_structure().get_name() == 'have-audio':
                 have_audio = True
         elif message.type == Gst.MessageType.ERROR:
             error = encoding.locale_decode(message.parse_error()[0])
             if missing_message and not mime:
-                caps = missing_message.structure['detail']
+                caps = missing_message.get_structure()['detail']
                 mime = caps.get_structure(0).get_name()
                 return tags, mime, have_audio
             raise exceptions.ScannerError(error)