diff --git a/docs/runner.md b/docs/runner.md
index d234e613..5eb6035d 100644
--- a/docs/runner.md
+++ b/docs/runner.md
@@ -30,6 +30,7 @@ variables:
    default: foo
 tasks:
  - name: echo-foo
+   actions:
      - cmd: echo ${FOO}
 ```