travis: fix build on Node 4

dex4er · Oct 17, 2017 · e6a6732 · e6a6732
1 parent 885a73f
commit e6a6732
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -23,6 +23,7 @@ matrix:
 
     - node_js: "4"
       env:
+        - NPM_INSTALL_PACKAGES="promise-readable promise-writable"
         - TAP_ARGS="--strict --harmony"
         - TAP_RCFILE=./.taprc