diff --git a/html/includes/collectd/definitions.php b/html/includes/collectd/definitions.php
index 6e1269c90..e93e35cfd 100644
--- a/html/includes/collectd/definitions.php
+++ b/html/includes/collectd/definitions.php
@@ -422,9 +422,9 @@ function load_graph_definitions($logarithmic = false, $tinylegend = false) {
 		'GPRINT:avg:LAST:%4.1lf\l');
 	$GraphDefs['frequency'] = array(
 		#'-v', 'Hertz',
-		'DEF:avg={file}:frequency:AVERAGE',
-		'DEF:min={file}:frequency:MIN',
-		'DEF:max={file}:frequency:MAX',
+		'DEF:avg={file}:value:AVERAGE',
+		'DEF:min={file}:value:MIN',
+		'DEF:max={file}:value:MAX',
 		"AREA:max#b5b5b5",
 		"AREA:min#$Canvas",
 		"LINE1:avg#$FullBlue:Frequency [Hz]",