diff --git a/doc/Thesis.pdf b/doc/Thesis.pdf
index ac29c15..1f8e0c5 100644
Binary files a/doc/Thesis.pdf and b/doc/Thesis.pdf differ
diff --git a/doc/graphviz/dns64.dot b/doc/graphviz/dns64.dot
index 77bf918..6bf2463 100644
--- a/doc/graphviz/dns64.dot
+++ b/doc/graphviz/dns64.dot
@@ -13,14 +13,14 @@ digraph G {
     v4host1 [ label="IPv4 host: 192.0.2.0" ];
 
 
-    subgraph sdns64 {
+    subgraph cluster_dns64 {
         label="DNS request";
 
         dnsserver;
         authdns;
     }
 
-    subgraph snat64 {
+    subgraph cluster_nat64 {
         label="NAT64 translation";
         nat64;
         v4host1;
@@ -34,8 +34,8 @@ digraph G {
     authdns->dnsserver [ label="NO AAAA record"];
     authdns->dnsserver [ label="A: 192.0.2.0"];
 
-    v6host1->nat64 [ label="Packet for\n64:ff9b::c000:200 tcp port 80" ];
-    nat64->v4host1 [ label="Packet for\n192.0.2.0 tcp port 80" ];
+    v6host1->nat64 [ label="Packet for\n64:ff9b::c000:200\ntcp port 80" ];
+    nat64->v4host1 [ label="Packet\n for 192.0.2.0\ntcp port 80" ];
 
 
 }
diff --git a/doc/graphviz/dns64.png b/doc/graphviz/dns64.png
index 6c29288..111b0b0 100644
Binary files a/doc/graphviz/dns64.png and b/doc/graphviz/dns64.png differ