diff --git a/doc/Doxyfile b/doc/Doxyfile
index 02cbf27368..626dfcdbf5 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -568,7 +568,7 @@ WARN_LOGFILE           =
 # directories like "/usr/src/myproject". Separate the files or directories
 # with spaces.
 
-INPUT                  = ../src/lib/cc ../src/lib/config ../src/lib/dns ../src/lib/exceptions
+INPUT                  = ../src/lib/cc ../src/lib/config ../src/lib/dns ../src/lib/exceptions ../src/bin/auth
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is