diff --git a/doc/src/platforms/platform-notes.qdoc b/doc/src/platforms/platform-notes.qdoc
index 6481f518161725be6457f269cf219523ac070fdc..13c02a6757d624b279b5493804ff7fed41a7ceb8 100644
--- a/doc/src/platforms/platform-notes.qdoc
+++ b/doc/src/platforms/platform-notes.qdoc
@@ -331,4 +331,12 @@
         }
 
     \endcode
+
+    \section2 D-Bus
+
+    Mac OS X does not ship with a D-Bus daemon, because the operating system has
+    its own IPC mechanisms; therefore Qt binary packages don't usually include
+    the \l{Qt D-Bus} module. However you can install \c dbus via Homebrew, Fink or
+    MacPorts; then when you build Qt it will be detected, and the Qt D-Bus module
+    will be built.
 */