diff --git a/net/openconnect/files/openconnect.sh b/net/openconnect/files/openconnect.sh
index e80cf969e..6a7d12275 100755
--- a/net/openconnect/files/openconnect.sh
+++ b/net/openconnect/files/openconnect.sh
@@ -69,11 +69,13 @@ proto_openconnect_setup() {
 
 	logger -t openconnect "initializing..."
 
-	logger -t "openconnect" "adding host dependency for $server at $config"
-	for ip in $(resolveip -t 10 "$server"); do
-		logger -t "openconnect" "adding host dependency for $ip at $config"
-		proto_add_host_dependency "$config" "$ip" "$interface"
-	done
+	[ -n "$interface" ] && {
+		logger -t "openconnect" "adding host dependency for $server at $config"
+		for ip in $(resolveip -t 10 "$server"); do
+			logger -t "openconnect" "adding host dependency for $ip at $config"
+			proto_add_host_dependency "$config" "$ip" "$interface"
+		done
+	}
 
 	[ -n "$port" ] && port=":$port"