diff --git a/.travis.osx.yml b/.travis.osx.yml
index fb20ed26a..cda24bf58 100644
--- a/.travis.osx.yml
+++ b/.travis.osx.yml
@@ -83,6 +83,7 @@ install:
       sudo chown -R `whoami` /usr/local;
       brew install gmp; brew link --overwrite gmp;
       brew install mpfr; brew link --overwrite mpfr;
+      brew install lua;
   fi
 - brew install cmake ninja
 - if [[ $MEMCHECK == TRUE ]]; then