diff --git a/docs/api/ext.rst b/docs/api/ext.rst
index 594f5200..11908920 100644
--- a/docs/api/ext.rst
+++ b/docs/api/ext.rst
@@ -4,6 +4,8 @@
 Extension API
 *************
 
+If you want to learn how to make Mopidy extensions, read :ref:`extensiondev`.
+
 .. automodule:: mopidy.ext
     :synopsis: Extension API for extending Mopidy
     :members: