diff --git a/.github/workflows/sage-test.yml b/.github/workflows/sage-test.yml
index dc4f1576..19c09e94 100644
--- a/.github/workflows/sage-test.yml
+++ b/.github/workflows/sage-test.yml
@@ -109,6 +109,7 @@ jobs:
           export SAGENAME=sage-test
           export SITENAME=wpcm-sage-install-tests
           export CI=1
+          export SITEENV=$multidev_name
           cd ~/pantheon-local-copies/$SITENAME
           composer install-sage || exit_code=$?
           if [[ -n "${exit_code}" ]]; then