diff --git a/docs/changelog.rst b/docs/changelog.rst
index 82000ed6..9dbadc1a 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -10,6 +10,11 @@ v0.19.2 (UNRELEASED)
 
 Bug fix release.
 
+**Audio**
+
+- Make :confval:`audio/mixer_volume` work on the software mixer again. This
+  was broken with the mixer changes in 0.19.0. (Fixes: :issue:`791`)
+
 **HTTP**
 
 - When using Tornado 4.0, allow WebSocket requests from other hosts. (Fixes:
diff --git a/mopidy/audio/actor.py b/mopidy/audio/actor.py
index 55aa45b8..dcc51ea4 100644
--- a/mopidy/audio/actor.py
+++ b/mopidy/audio/actor.py
@@ -195,6 +195,14 @@ class Audio(pykka.ThreadingActor):
         self._connect(self._playbin, 'notify::volume', self._on_mixer_change)
         self._connect(self._playbin, 'notify::mute', self._on_mixer_change)
 
+        # The Mopidy startup procedure will set the initial volume of a mixer,
+        # but this happens before the audio actor is injected into the software
+        # mixer and has no effect. Thus, we need to set the initial volume
+        # again.
+        initial_volume = self._config['audio']['mixer_volume']
+        if initial_volume is not None:
+            self._mixer.set_volume(initial_volume)
+
     def _on_mixer_change(self, element, gparamspec):
         self._mixer.trigger_events_for_changed_values()