diff --git a/tests/image-stream/dmg.spec.js b/tests/image-stream/dmg.spec.js
index d0259188..feaa72fe 100644
--- a/tests/image-stream/dmg.spec.js
+++ b/tests/image-stream/dmg.spec.js
@@ -27,6 +27,8 @@ const tester = require('./tester');
 
 describe('ImageStream: DMG', function() {
 
+  this.timeout(20000);
+
   describe('compression method', function() {
 
     describe('NONE', function() {