diff --git a/doc/DoxygenLayout.xml b/doc/DoxygenLayout.xml
index c1a7744f..d4e73be2 100644
--- a/doc/DoxygenLayout.xml
+++ b/doc/DoxygenLayout.xml
@@ -5,6 +5,7 @@
     <tab type="pages" visible="yes" title="General Information" intro=""/>
     <tab type="user" visible="yes" url="../html/index.html" title="Top Level" intro=""/>
     <tab type="user" visible="yes" url="../cm3/html/modules.html" title="CM3 Core" intro=""/>
+    <tab type="user" visible="yes" url="../usb/html/modules.html" title="Generic USB" intro=""/>
     <tab type="user" visible="yes" url="../stm32f1/html/modules.html" title="STM32F1" intro=""/>
     <tab type="user" visible="yes" url="../stm32f2/html/modules.html" title="STM32F2" intro=""/>
     <tab type="user" visible="yes" url="../stm32f4/html/modules.html" title="STM32F4" intro=""/>