diff --git a/.travis.yml b/.travis.yml
index 4adc8c8355..9101c6ea02 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,7 +11,7 @@ language: node_js
 matrix:
   include:
     - node_js: '6'
-      env: TARGET="lint test-node test-browser"
+      env: TARGET="clean lint test-node test-browser"
     - node_js: '5'
       env: TARGET=test-node
     - node_js: '4'