diff --git a/applications/nublado2/values-rsptest.yaml b/applications/nublado2/values-rsptest.yaml
index 5437f1e37d..5299598503 100644
--- a/applications/nublado2/values-rsptest.yaml
+++ b/applications/nublado2/values-rsptest.yaml
@@ -13,6 +13,7 @@ config:
     AUTO_REPO_URLS: "https://github.com/lsst-uk/rsp-uk-notebooks"
     AUTO_REPO_BRANCH: "main"
     AUTO_REPO_SPECS: "https://github.com/lsst-uk/rsp-uk-notebooks@main"
+    PGPASSFILE: "/opt/lsst/software/jupyterlab/secrets/postgres-credentials.txt"
   pinned_images:
     - image_url: registry.hub.docker.com/lsstsqre/sciplat-lab:recommended
       name: Recommended