diff --git a/packages/shell/lib/plugins/args.js b/packages/shell/lib/plugins/args.js
index aac49ba..f248296 100644
--- a/packages/shell/lib/plugins/args.js
+++ b/packages/shell/lib/plugins/args.js
@@ -172,7 +172,7 @@ Shell.prototype.parse = function(argv = process, options = {}) {
     // Check against required main
     const main = config.main;
     if (main) {
-      required = typeof main.required === 'function' ? !!main.required.call(null, {
+      const required = typeof main.required === 'function' ? !!main.required.call(null, {
         config: config,
         command: command
       }) : !!main.required;
@@ -200,8 +200,8 @@ Shell.prototype.parse = function(argv = process, options = {}) {
       params[appconfig.command] = [];
     }
     for (const command_params of full_params) {
-      for (k in command_params) {
-        v = command_params[k];
+      for (const k in command_params) {
+        const v = command_params[k];
         if (k === appconfig.command) {
           params[k].push(v);
         } else {
@@ -286,9 +286,9 @@ Shell.prototype.compile = function(data, options = {}) {
       }
     }
     if (config.main) {
-      value = ldata[config.main.name];
+      const value = ldata[config.main.name];
       // Handle required
-      required = typeof config.main.required === 'function' ? !!config.main.required.call(null, {
+      const required = typeof config.main.required === 'function' ? !!config.main.required.call(null, {
         config: config,
         command: undefined
       }) : !!config.main.required;
@@ -319,8 +319,8 @@ Shell.prototype.compile = function(data, options = {}) {
     // Handle data not defined in the configuration
     // Note, they are always pushed to the end and associated with the deepest child
       const results = [];
-      for (key in ldata) {
-        value = ldata[key];
+      for (const key in ldata) {
+        const value = ldata[key];
         if (keys[key]) {
           continue;
         }
diff --git a/packages/shell/lib/plugins/config.js b/packages/shell/lib/plugins/config.js
index d7ddc2f..d124cf0 100644
--- a/packages/shell/lib/plugins/config.js
+++ b/packages/shell/lib/plugins/config.js
@@ -207,12 +207,12 @@ Shell.prototype.confx = function(command = []) {
       if (command.length) {
         config.command = command;
       }
-      for (name in config.commands) {
+      for (const name in config.commands) {
         config.commands[name] = ctx.confx([...command, name]).get();
       }
       config.options = this.options.show();
       config.shortcuts = {};
-      for (name in config.options) {
+      for (const name in config.options) {
         const option = config.options[name];
         if (option.shortcut) {
           config.shortcuts[option.shortcut] = option.name;
diff --git a/packages/shell/lib/plugins/help.js b/packages/shell/lib/plugins/help.js
index e42a8d9..7b20575 100644
--- a/packages/shell/lib/plugins/help.js
+++ b/packages/shell/lib/plugins/help.js
@@ -282,7 +282,7 @@ Shell.prototype.help = function(commands = [], options = {}) {
     }
     for (const name of Object.keys(config.options).sort()) {
       const option = config.options[name];
-      description = option.description || `No description yet for the ${option.name} option.`;
+      let description = option.description || `No description yet for the ${option.name} option.`;
       if (option.required) {
         description += ' Required.';
       }
@@ -323,7 +323,7 @@ Shell.prototype.help = function(commands = [], options = {}) {
     // Detailed command information
     if (options.extended) {
       for (const name in config.commands) {
-        command = config.commands[name];
+        const command = config.commands[name];
         content.push('');
         content.push(`COMMAND \"${command.name}\"`);
         // Raw command, no main, no child commands
@@ -384,7 +384,7 @@ Shell.prototype.help = function(commands = [], options = {}) {
         return `${options.indent}${l}`;
       }));
     } else {
-      line = pad(`${options.indent}${cmd} --help`, options.columns);
+      let line = pad(`${options.indent}${cmd} --help`, options.columns);
       if (line.length > options.columns) {
         content.push(line);
         line = ' '.repeat(options.columns);
@@ -399,7 +399,7 @@ Shell.prototype.help = function(commands = [], options = {}) {
         return `${options.indent}${l}`;
       }));
     } else {
-      line = pad(`${options.indent}${cmd} help`, options.columns);
+      let line = pad(`${options.indent}${cmd} help`, options.columns);
       if (line.length > options.columns) {
         content.push(line);
         line = ' '.repeat(options.columns);