diff --git a/vz/dists/scripts/functions b/vz/dists/scripts/functions
index b067ec2..459fc30 100755
--- a/vz/dists/scripts/functions
+++ b/vz/dists/scripts/functions
@@ -275,7 +275,7 @@ change_hostname()
 		BEGIN {found = 0; skip = 0}
 		$0 == comm {found = 1; next}
 		found {
-			if (ip == "") {ip = $1}
+			if (ip == "" && ! $1 ~ "^#") {ip = $1}
 			next;
 		}
 		!found && $2 == host {skip = 1}
@@ -288,6 +288,7 @@ change_hostname()
 			if (skip) exit 0;
 			if (ip == "") { ip = "127.0.0.1" }
 			print comm;
+			print "# ALL CHANGES BELOW THIS LINE WILL BE LOST";
 			alias=""
 			if ((i=index(host, ".")) > 1) {
 				alias=substr(host, 1, i - 1);