diff --git a/plugins/network/avm-fritzbox-wan-traffic b/plugins/network/avm-fritzbox-wan-traffic
index 04a2b949..adda3a73 100755
--- a/plugins/network/avm-fritzbox-wan-traffic
+++ b/plugins/network/avm-fritzbox-wan-traffic
@@ -27,15 +27,17 @@ if(isset($argv[1]) && $argv[1] == "autoconf") {
 	echo "graph_category network\n";
 	echo "graph_info This graph shows the traffic of the AVM Fritz!Box WAN network interface. Please note that the traffic is shown in bits per second, not bytes.\n";
 	echo "down.label received\n";
-	echo "down.type COUNTER\n";
+	echo "down.type DERIVE\n";
 	echo "down.graph no\n";
 	echo "down.cdef down,8,*\n";
+	echo "down.min 0\n";
 	echo "down.max 1000000000\n";
 	echo "up.label " . $data_prop['NewWANAccessType'] . " (" . $data_prop['NewPhysicalLinkStatus'] . ")\n";
-	echo "up.type COUNTER\n";
+	echo "up.type DERIVE\n";
 	echo "up.negative down\n";
 	echo "up.draw AREA\n";
 	echo "up.cdef up,8,*\n";
+	echo "up.min 0\n";
 	echo "up.max 1000000000\n";
 	echo "up.info Traffic of the WAN interface.\n";
 	echo "maxdown.label received\n";