diff --git a/ospfcli2dot b/ospfcli2dot
index c861d6a..1d9129a 100755
--- a/ospfcli2dot
+++ b/ospfcli2dot
@@ -224,7 +224,7 @@ if(len(separator) > 0):
 		firstlast = -1
 	for r in routers:
 		if (r.hostname != r.routerid):
-			areas.add(r.hostname.split(separator)[0])
+			areas.add(r.hostname.split(separator)[firstlast])
 
 filename = input("Enter output filename: ")
 with open(filename, 'w') as outfile: