diff --git a/deploy/appflowy/deployment.yaml b/deploy/appflowy/deployment.yaml
index e8c0bf7..1cb0d05 100644
--- a/deploy/appflowy/deployment.yaml
+++ b/deploy/appflowy/deployment.yaml
@@ -71,7 +71,7 @@ spec:
               valueFrom:
                 secretKeyRef:
                   name: appflowy-secrets
-                  key: SMTP_ADMIN_EMAIL
+                  key: SMTP_USER
             - name: PORT
               value: "9999"
             - name: GOTRUE_JWT_ADMIN_GROUP_NAME