diff --git a/.travis/install_llvm.sh b/.travis/install_llvm.sh
index d9e677d..aa6cb94 100755
--- a/.travis/install_llvm.sh
+++ b/.travis/install_llvm.sh
@@ -4,5 +4,5 @@ set -ev
 if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
     #    wget http://csl.sri.com/users/iam/llvm_lite-6.0.0.high_sierra.bottle.1.tar.gz
     #    brew install -v ./llvm_lite-6.0.0.high_sierra.bottle.1.tar.gz
-    brew install llvm
+    brew install -v llvm
 fi