diff --git a/doc/Doxyfile b/doc/Doxyfile
index 1d18797..5034572 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -864,7 +864,7 @@ WARN_LOGFILE           =
 # spaces. See also FILE_PATTERNS and EXTENSION_MAPPING
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = ../include ../test ../example
+INPUT                  = ../include ../test ../example ../doc
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses