diff --git a/src/emulator/commands/set-hostname.js b/src/emulator/commands/set-hostname.js
index 9c53630..1cc7916 100644
--- a/src/emulator/commands/set-hostname.js
+++ b/src/emulator/commands/set-hostname.js
@@ -1,7 +1,6 @@
 const { Terminal } = require("xterm");
 
-const original_data = Object.freeze(data);
-global.orig = original_data;
+const orig_ip = data.ip;
 
 /**
  * 
@@ -9,22 +8,21 @@ global.orig = original_data;
  * @param {Terminal} terminal 
  */
 module.exports = (argv, terminal, zsh) => {
-    if (argv.indexOf('--help') !== -1) {
-        terminal.writeln(`
-Usage: ${argv[0]} [hostname] [-R] [--help]
-    -R      Reset it to original IP (${original_data.ip})
+    if (argv.indexOf('--help') !== -1 | (!argv[1])) {
+        terminal.writeln(`Usage: ${argv[0]} [hostname] [-R] [--help]
+    -R      Reset it to original IP (${orig_ip})
     --help  Show this page`
         );
         return 0;
     }
 
     if (argv.indexOf('-R') !== -1) {
-        data.ip = original_data.ip;
+        data.ip = orig_ip;
         zsh.update_prompt();
         return 0;
     }
 
-    data.ip = argv[1] || 'resume.js';
+    data.ip = argv[1];
     zsh.update_prompt();
     return 0;
 }
\ No newline at end of file
diff --git a/src/emulator/zsh.js b/src/emulator/zsh.js
index ec52e87..f863c38 100644
--- a/src/emulator/zsh.js
+++ b/src/emulator/zsh.js
@@ -8,13 +8,6 @@ global.fs = fs;
 const cmds = require('./commands');
 const sleep = require('../lib/sleep');
 
-// ZSH api to be used in commands (see references)
-const zshapi = {
-    update_prompt,
-    text_prompt,
-    pr_char
-};
-
 /**
  * @type { Terminal }
  */
@@ -25,6 +18,15 @@ let terminal;
  */
 let dom;
 
+// ZSH api to be used in commands (see references)
+const zshapi = {
+    update_prompt,
+    text_prompt,
+    pr_char,
+    terminal,
+    dom
+};
+
 let prompt = `\x1b[1;32muser@${data.ip} \x1b[36m~ $ \x1b[0m`;
 let cmd = '';
 let lastcmd = window.sessionStorage.getItem('last_cmd') || '';
@@ -40,6 +42,14 @@ function text_prompt() {
 /**
  * 
  * @param { string } char 
+// ZSH api to be used in commands (see references)
+const zshapi = {
+    update_prompt,
+    text_prompt,
+    pr_char,
+    terminal,
+    dom
+};
  * @param { KeyboardEvent } dom 
  */
 function pr_char(char, dom) {