diff --git a/contrib/munin/weboob-generic b/contrib/munin/weboob-generic
index d9bc325f..22ddbd77 100755
--- a/contrib/munin/weboob-generic
+++ b/contrib/munin/weboob-generic
@@ -278,6 +278,8 @@ class GenericMuninPlugin(object):
         self.write_output('graph_vlabel %s' % self.vlabel.encode('iso-8859-15'))
         self.write_output('graph_category %s') % self.category
         self.write_output('graph_args --rigid')
+        if self.cumulate:
+            self.write_output('graph_total Total')
         try:
             objects = []
             if self.tomonitore or self.exclude: