diff --git a/Tools/travis-osx-install.sh b/Tools/travis-osx-install.sh
index 99580384c..71d2b2dd0 100755
--- a/Tools/travis-osx-install.sh
+++ b/Tools/travis-osx-install.sh
@@ -4,6 +4,9 @@
 
 set -e # exit on failure (same as -o errexit)
 
+# Disable 'brew cleanup', just wastes Travis job run time
+export HOMEBREW_NO_INSTALL_CLEANUP=1
+
 sw_vers
 travis_retry brew update
 travis_retry brew list