diff --git a/src/struct/CompilerClient.js b/src/struct/CompilerClient.js
index 2b3e18a..36b4ed5 100644
--- a/src/struct/CompilerClient.js
+++ b/src/struct/CompilerClient.js
@@ -31,7 +31,7 @@ class CompilerClient extends AkairoClient {
         this.config = config;
     }
 
-    start() {
+    async start() {
         this.commandHandler.useListenerHandler(this.listenerHandler);
         this.listenerHandler.setEmitters({
             commandHandler: this.commandHandler,
@@ -42,7 +42,7 @@ class CompilerClient extends AkairoClient {
         this.commandHandler.loadAll();
         this.listenerHandler.loadAll();
         this.languageHandler.loadAll();
-        this.languageHandler.buildDocker();
+        await this.languageHandler.buildDocker();
         return this.login(this.config.token);
     }
 }
diff --git a/src/struct/LanguageHandler.js b/src/struct/LanguageHandler.js
index aa5cf9e..2c7282e 100644
--- a/src/struct/LanguageHandler.js
+++ b/src/struct/LanguageHandler.js
@@ -2,6 +2,8 @@ const { AkairoHandler } = require('discord-akairo');
 const { Collection } = require('discord.js');
 const Language = require('./Language');
 const childProcess = require('child_process');
+const util = require('util');
+const path = require('path');
 
 class LanguageHandler extends AkairoHandler {
     constructor(client, {
@@ -48,9 +50,10 @@ class LanguageHandler extends AkairoHandler {
     }
 
     buildDocker() {
-        for (const [, { id }] of this.modules) {
-            childProcess.execSync(`docker build -t "1computer1/comp_iler:${id}" ./docker/${id}`);
-        }
+        return Promise.all(this.modules.map(({ id }) => {
+            const folder = path.join(__dirname, '../../docker', id);
+            return util.promisify(childProcess.exec)(`docker build -t "1computer1/comp_iler:${id}" ${folder}`);
+        }));
     }
 
     evalCode(message, { language, code, options }) {