Install happy

diff --git a/.travis.yml b/.travis.yml
index 290691eed94c2e59e797f1c9cb0772958a76e47f..9d2616c38fe4753b19d0aaf88356ddbd2cb81368 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,7 +39,7 @@ before_install:
   # - export PATH=$HOME/haskell-ide-engine/dist-newstyle/build/*/ghc-*/haskell-ide-engine-*/x/hie/build:$PATH
   # - stack --no-terminal --skip-ghc-check install -j2
   # - stack exec hoogle generate
-  - cabal install hoogle
+  - cabal install happy hoogle
   - hoogle generate
   - cd $TRAVIS_BUILD_DIR
   - npm update