diff --git a/cmd/reg.js b/cmd/reg.js
index fabb293..2acdd8a 100644
--- a/cmd/reg.js
+++ b/cmd/reg.js
@@ -3,29 +3,50 @@ import { CommandInitializer, Command } from '../parser.js';
 const initializer = new CommandInitializer();
 
 class PingCommand extends Command {
-	name = 'ping';
-	func(msg, args, ctx) {
-		msg.channel.createMessage('p').then((m) => {
-			m.edit(
-				`rtt: ${Math.floor(m.timestamp - msg.timestamp)}, gateway: ${
-					ctx.bot.shards.get(ctx.bot.guildShardMap[ctx.bot.channelGuildMap[msg.channel.id]] || 0).latency
-				}`
-			);
-		});
-	}
+  name = 'ping';
+  func(msg, args, ctx) {
+    msg.channel.createMessage('p').then((m) => {
+      m.edit(
+        `rtt: ${Math.floor(m.timestamp - msg.timestamp)}, gateway: ${ctx.bot.shards.get(ctx.bot.guildShardMap[ctx.bot.channelGuildMap[msg.channel.id]] || 0).latency
+        }`
+      );
+    });
+  }
 }
 
 initializer.addCommand(new PingCommand());
 
 class RestartCommand extends Command {
-	name = 'restart';
-	func(msg, args, ctx) {
-		msg.channel.createMessage('restarting.').then(() => {
-			process.exit();
-		});
-	}
+  name = 'restart';
+  func(msg, args, ctx) {
+    msg.channel.createMessage('restarting.').then(() => {
+      process.exit();
+    });
+  }
 }
 
 initializer.addCommand(new RestartCommand());
 
+class EvalCommand extends Command {
+  name = 'eval';
+  whitelist = true;
+  func(msg, args, ctx) {
+    log.debug('evaluating ' + args[0]);
+    let result;
+    try {
+      result = eval(args[0]);
+    } catch (e) {
+      result = e.stack;
+    }
+    log.debug('result is: \n' + result);
+    if (String.valueOf(result).length <= 1999) {
+      msg.channel.createMessage('```\n' + result + '```\n');
+    } else {
+      msg.channel.createMessage('result too long, see logs');
+    }
+  }
+}
+
+initializer.addCommand(new EvalCommand());
+
 export default initializer;
diff --git a/lights/request.js b/lights/request.js
index 840eeee..d32c3df 100644
--- a/lights/request.js
+++ b/lights/request.js
@@ -39,7 +39,7 @@ export default function req(data, callback, errorCallback) {
     client.write(string_data);
   })
   client.on('data', (dat) => {
-    callback(dat);
+    callback(String(dat));
     client.destroy();
   })