diff --git a/plugins/system/freeboxuptime b/plugins/system/freeboxuptime
index ca8f0922..35062672 100755
--- a/plugins/system/freeboxuptime
+++ b/plugins/system/freeboxuptime
@@ -81,7 +81,7 @@ fi
 if [ "$1" = "config" ]; then
 
 	echo 'graph_title Freebox Uptime'
-	echo 'graph_category Time'
+	echo 'graph_category system'
 	echo 'graph_args --base 1000 -l 0 '
 	echo 'graph_vlabel uptime in days'
 	graph_info="Shows the uptime of your freebox (cache: ${CACHE_HOURS}h"