diff --git a/index.js b/index.js
index 7e3818bf8..181ad20ad 100644
--- a/index.js
+++ b/index.js
@@ -5,6 +5,7 @@ const fs = require('fs');
 const path = require('path');
 const {exec} = require('child_process');
 const rimraf = require('rimraf');
+require('source-map-support').install();
 
 let controller;
 let stopping = false;
diff --git a/lib/util/yaml.ts b/lib/util/yaml.ts
index eb3319df8..d034b55d9 100644
--- a/lib/util/yaml.ts
+++ b/lib/util/yaml.ts
@@ -1,7 +1,6 @@
 import yaml from 'js-yaml';
 import fs from 'fs';
 import equals from 'fast-deep-equal/es6';
-import 'source-map-support/register';
 
 export function read(file: string): KeyValue {
     try {