diff --git a/docs/extensiondev.rst b/docs/extensiondev.rst
index 93f627dc..a2a5f463 100644
--- a/docs/extensiondev.rst
+++ b/docs/extensiondev.rst
@@ -307,12 +307,6 @@ This is ``mopidy_soundspot/__init__.py``::
             from .backend import SoundspotBackend
             registry.add('backend', SoundspotBackend)
 
-            # Register a custom GStreamer element
-            from .mixer import SoundspotMixer
-            gobject.type_register(SoundspotMixer)
-            gst.element_register(
-                SoundspotMixer, 'soundspotmixer', gst.RANK_MARGINAL)
-
             # Or nothing to register e.g. command extension
             pass
 
@@ -416,17 +410,6 @@ examples, see the :ref:`http-server-api` docs or explore with
 :ref:`http-explore-extension` extension.
 
 
-Example GStreamer element
-=========================
-
-If you want to extend Mopidy's GStreamer pipeline with new custom GStreamer
-elements, you'll need to register them in GStreamer before they can be used.
-
-Basically, you just implement your GStreamer element in Python and then make
-your :meth:`~mopidy.ext.Extension.setup` method register all your custom
-GStreamer elements.
-
-
 Running an extension
 ====================