diff --git a/.travis.yml b/.travis.yml
index e6fb35894..ad8f1ee4e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,7 +11,7 @@ before_install:
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install opam; fi
 install:
-  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then travis_wait 120 ./build-infer.sh; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then travis_wait 120 ./build-infer.sh --yes; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then eval `opam config env`; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then opam pin add -y --no-action -k git infer .; fi
   - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then opam install -y infer; fi