diff --git a/.travis.yml b/.travis.yml
index a5d5806f..a35f07a0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,15 @@
+# YAML anchors need to appear first.
+# Keys starting with an underscore are the custom ones, refer to
+# https://docs.travis-ci.com/user/build-config-yaml#private-keys-as-yaml-anchors-and-aliases-and-external-tooling
+
+_native_job: &native_job
+  script: |
+    test/run
+
 language: shell
 
 jobs:
-  - script: test/run
+  - <<: *native_job
     os: linux
-  - script: test/run
+  - <<: *native_job
     os: osx