diff --git a/scripts/rrd_graphgen.py b/scripts/rrd_graphgen.py
index 33d8536..f424de0 100755
--- a/scripts/rrd_graphgen.py
+++ b/scripts/rrd_graphgen.py
@@ -44,7 +44,7 @@ RRD_GRAPH = 	"%s " \
 		"--right-axis 1:0 " \
 		"--x-grid MINUTE:10:HOUR:1:MINUTE:120:0:%%R " \
 		"--alt-y-grid --rigid " \
-		"DEF:roundtrip=%s:ttl:AVERAGE " \
+		"DEF:roundtrip=%s:rrd:AVERAGE " \
 		"LINE1:roundtrip#0000FF:\"latency(ms)\" "
 
 # RRD_GRAPH ARGS: <output_filename.png>, <title>, <rrd>
diff --git a/scripts/rrd_service.py b/scripts/rrd_service.py
index cd43b01..3e9fe91 100755
--- a/scripts/rrd_service.py
+++ b/scripts/rrd_service.py
@@ -39,7 +39,7 @@ RRD_CREATE = "%s " \
 		"RRA:AVERAGE:0.5:72:124 "\
 		"RRA:AVERAGE:0.5:288:365"
 
-RRD_UPDATE = "%s --template ttl N:%s"
+RRD_UPDATE = "%s --template rtt N:%s"
 
 RRD_DIR = args.rrd_path
 RRDTOOL = "/usr/bin/rrdtool"