diff --git a/packages/xo-collection/package.json b/packages/xo-collection/package.json
index 156ecb5af..13f6732b3 100644
--- a/packages/xo-collection/package.json
+++ b/packages/xo-collection/package.json
@@ -32,6 +32,7 @@
     "event-to-promise": "^0.3.2",
     "mocha": "*",
     "sinon": "^1.14.1",
+    "source-map-support": "*",
     "standard": "*"
   },
   "scripts": {
diff --git a/packages/xo-collection/src/index.spec.js b/packages/xo-collection/src/index.spec.js
index 6f4824b2a..4ef572483 100644
--- a/packages/xo-collection/src/index.spec.js
+++ b/packages/xo-collection/src/index.spec.js
@@ -10,6 +10,9 @@ import chai, {expect} from 'chai'
 import dirtyChai from 'dirty-chai'
 chai.use(dirtyChai)
 
+import sourceMapSupport from 'source-map-support'
+sourceMapSupport.install()
+
 function waitTicks (n = 1) {
   const {nextTick} = process