diff --git a/doc/dev/dolibarr-doxygen.conf b/doc/dev/dolibarr-doxygen.conf
index d64eea3e389..5a659dca2b5 100644
--- a/doc/dev/dolibarr-doxygen.conf
+++ b/doc/dev/dolibarr-doxygen.conf
@@ -83,6 +83,7 @@ EXCLUDE                = mysql \
                          htdocs/theme \
                          htdocs/images \
                          htdocs/includes/fpdf \
+                         htdocs/includes/jpgraph2 \
                          htdocs/includes/magpierss \
                          htdocs/includes/pear \
                          htdocs/includes/php_writeexcel \