diff --git a/.travis.yml b/.travis.yml
index 1fb00a6..1a5d4ef 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,8 +5,12 @@ matrix:
     language: minimal
     services:
     - docker
+    env:
+    - OS_NAME: linux
   - os: osx
     language: minimal
+    env:
+    - OS_NAME: macos
     osx_image: xcode10.2
 script:
 - ./build.sh _travis-${TRAVIS_OS_NAME}
diff --git a/scripts/travis_test.sh b/scripts/travis_test.sh
index 3e8bcdb..61f583f 100755
--- a/scripts/travis_test.sh
+++ b/scripts/travis_test.sh
@@ -2,5 +2,5 @@
 
 set -ex
 
-./dist/${TRAVIS_OS_NAME}/amd64/ooni onboard --yes
-./dist/${TRAVIS_OS_NAME}/amd64/ooni run --no-collector
+./dist/${OS_NAME}/amd64/ooni onboard --yes
+./dist/${OS_NAME}/amd64/ooni run --no-collector