diff --git a/doc/doxygen.conf b/doc/doxygen.conf
index 9f7d73268..67c185b23 100644
--- a/doc/doxygen.conf
+++ b/doc/doxygen.conf
@@ -576,6 +576,7 @@ INPUT                  = \
 	src/crypto \
 	src/drivers \
 	src/eap_common \
+	src/eapol_auth \
 	src/eapol_supp \
 	src/eap_peer \
 	src/eap_server \