diff --git a/.travis.yml b/.travis.yml
index b69bb7fb..58f3d52c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,6 @@ before_script:
 #  - npm install node-red
   - npm install git+https://github.com/node-red/node-red.git
   - export NODE_RED_HOME=`pwd`/node_modules/node-red
-  - (cd $NODE_RED_HOME ; npm install nock@~0.48.0 )
+  - (cd $NODE_RED_HOME ; npm install nock@~0.48.0 ; grunt build)
 script:
   - istanbul cover ./node_modules/.bin/grunt --report lcovonly && istanbul report text && ( cat coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js || true ) && rm -rf coverage