diff --git a/module_dfu/doc/factory_image.rst b/module_dfu/doc/factory_image.rst
index e977eed7..37edb2bd 100644
--- a/module_dfu/doc/factory_image.rst
+++ b/module_dfu/doc/factory_image.rst
@@ -1,5 +1,8 @@
+Creating factory and upgrade images with XFLASH
+===============================================
+
 Installing the factory image to the device
-==========================================
+------------------------------------------
 
 The DFU device interface is enabled by default in the XMOS USB Audio framework
 (see ``devicedefines.h``), and explicitly enabled in each reference design
@@ -40,6 +43,9 @@ The device will now support the DFU mechanism, and can use it to safely receive
 firmware updates, as well as revert to the factory firmware image when required,
 such as in the event of a failed upgrade attempt.
 
+Creating the upgrade image
+--------------------------
+
 To use the firmware upgrade mechanism you need to build a firmware upgrade
 image:
 
diff --git a/module_dfu/doc/index.rst b/module_dfu/doc/index.rst
index 0eabc98b..045a0a27 100644
--- a/module_dfu/doc/index.rst
+++ b/module_dfu/doc/index.rst
@@ -4,7 +4,7 @@ DFU loader for XMOS USB AUDIO devices
 .. toctree::
 
     Overview <overview>
-    Installing the factory image to the device <factory_image>
+    Creating factory and upgrade images with XFLASH <factory_image>
     Using the DFU loader - Windows (via the Thesycon driver) <thesycon_dfu>
     Using the DFU loader - OS X (via the XMOS DFU loader) <xmos_dfu>
     Building the XMOS DFU loader - OS X <building_xmos_dfu>