diff --git a/.github/workflows/e2e_tests.yml b/.github/workflows/e2e_tests.yml
index 8b0a5929..472e6de5 100644
--- a/.github/workflows/e2e_tests.yml
+++ b/.github/workflows/e2e_tests.yml
@@ -93,6 +93,7 @@ jobs:
           run:  |
             set -e
             env > .env
+            export DATA_DB_CONN_STRING = "postgresql://${POSTGRES_DATA_USER}:${POSTGRES_DATA_PASSWORD}@${POSTGRES_DATA_HOST}:${POSTGRES_DATA_PORT}/${POSTGRES_DATA_DB}"
             docker-compose -f docker-compose.yml -f docker-compose-dev.yml  build recipedb datadb server promptflow
             docker-compose -f docker-compose.yml -f docker-compose-dev.yml  start recipedb datadb server promptflow
             echo "logs db ..."