diff --git a/src/class/Util.ts b/src/class/Util.ts
index d3880d8..b2338db 100644
--- a/src/class/Util.ts
+++ b/src/class/Util.ts
@@ -32,27 +32,18 @@ export default class Util {
    * @param options childProcess.ExecOptions
    */
   public async exec(command: string, options: childProcess.ExecOptions = {}): Promise<string> {
-    return new Promise((res, rej) => {
-      let error = false;
-      let output = '';
-      const writeFunction = (data: string|Buffer|Error) => {
-        if (data instanceof Error) error = true;
-        output += `${data}`;
-      };
-      const cmd = childProcess.exec(command, options);
-      cmd.stdout.on('data', writeFunction);
-      cmd.stderr.on('data', writeFunction);
-      cmd.on('error', writeFunction);
-      cmd.once('close', (code, signal) => {
-        cmd.stdout.removeListener('data', writeFunction);
-        cmd.stderr.removeListener('data', writeFunction);
-        cmd.removeListener('error', writeFunction);
-        if (error) rej(output);
-        res(output);
-      });
-    });
+    const ex = promisify(childProcess.exec);
+    let result: string;
+    try {
+      const res = await ex(command, options);
+      result = `${res.stdout}${res.stderr}`;
+    } catch (err) {
+      return Promise.reject(new Error(`Command failed: ${err.cmd}\n${err.stderr}${err.stdout}`));
+    }
+    return result;
   }
 
+
   /**
    * Resolves a command
    * @param query Command input