diff --git a/doc/dev/dolibarr-doxygen.conf b/doc/dev/dolibarr-doxygen.conf
index da410fbcf23..7b199753168 100644
--- a/doc/dev/dolibarr-doxygen.conf
+++ b/doc/dev/dolibarr-doxygen.conf
@@ -80,6 +80,7 @@ EXCLUDE                = mysql \
                          build \
                          doc \
                          documents \
+						 external-libs \
                          htdocs/conf/conf.php \
                          htdocs/domain \
 						 htdocs/includes/adodbtime \