diff --git a/.circleci/config.yml b/.circleci/config.yml
index 834c5f9d2..9080c43ed 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -80,7 +80,7 @@ workflows:
       # Contexts are managed in the CircleCI web interface:
       #
       #  https://app.circleci.com/settings/organization/github/tahoe-lafs/contexts
-      - "build-image-debian-11":
+      - "build-image-debian-11": &DOCKERHUB_CONTEXT
           <<: *DOCKERHUB_CONTEXT
       - "build-image-ubuntu-20-04":
           <<: *DOCKERHUB_CONTEXT