diff --git a/src/doxygen.cfg b/src/doxygen.cfg
index 136edb48..3ce15c49 100644
--- a/src/doxygen.cfg
+++ b/src/doxygen.cfg
@@ -58,7 +58,9 @@ WARN_LOGFILE           =
 #---------------------------------------------------------------------------
 # configuration options related to the input files
 #---------------------------------------------------------------------------
-INPUT                  = @SRCDIRS@
+INPUT                  = @SRCDIRS@ \
+                         include \
+                         arch/@ARCH@/include
 FILE_PATTERNS          = 
 RECURSIVE              = NO
 EXCLUDE                =