diff --git a/html/includes/graphs/generic_duplex.inc.php b/html/includes/graphs/generic_duplex.inc.php
index bddfd09b0f..c4b46b78e3 100644
--- a/html/includes/graphs/generic_duplex.inc.php
+++ b/html/includes/graphs/generic_duplex.inc.php
@@ -93,7 +93,7 @@ if ($percentile) {
     $rrd_options .= ' GPRINT:percentile_in:%6.2lf%s';
 }
 
-$rrd_options .= " COMMENT:'\\n'";
+$rrd_options .= ' COMMENT:\\n';
 $rrd_options .= ' AREA:dout#'.$colour_area_out.':';
 $rrd_options .= ' LINE1.25:dout#'.$colour_line_out.":'".$out_text."'";
 $rrd_options .= ' GPRINT:out:LAST:%6.2lf%s';
@@ -104,7 +104,7 @@ if ($percentile) {
     $rrd_options .= ' GPRINT:percentile_out:%6.2lf%s';
 }
 
-$rrd_options .= " COMMENT:\\\\n";
+$rrd_options .= " COMMENT:\\n";
 
 if ($print_total) {
     $rrd_options .= " GPRINT:tot:'Total %6.2lf%s'";