diff --git a/Tools/scripts/build_all_travis.sh b/Tools/scripts/build_all_travis.sh
index fac891673b..b4608dd347 100755
--- a/Tools/scripts/build_all_travis.sh
+++ b/Tools/scripts/build_all_travis.sh
@@ -10,6 +10,9 @@ set -ex
 # CXX and CC are exported by default by travis
 unset CXX CC
 
+export BUILDROOT=/tmp/travis.build.$$
+rm -rf $BUILDROOT
+
 # If TRAVIS_BUILD_TARGET is not set, default to all of them
 if [ -z "$TRAVIS_BUILD_TARGET" ]; then
     TRAVIS_BUILD_TARGET="sitl linux navio raspilot minlure bebop px4-v2 px4-v4"