diff --git a/.travis.yml b/.travis.yml
index a58d3ee044..ae222a6f62 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
 os:
   - linux
+  - osx
 sudo: false
 filter_secrets: false
 addons:
@@ -23,6 +24,7 @@ env:
 before_script:
   - ./dev/bots/travis_setup.sh
 script:
+  - ulimit -S -n 2048 # https://github.com/flutter/flutter/issues/2976
   - (./bin/cache/dart-sdk/bin/dart ./dev/bots/test.dart && ./dev/bots/travis_upload.sh)
 cache:
   directories: