diff --git a/geoportal/config.yaml b/geoportal/config.yaml
index 6f210e1bf..dbb88658a 100644
--- a/geoportal/config.yaml
+++ b/geoportal/config.yaml
@@ -128,15 +128,15 @@ vars:
       redis_expiration_time: 86400}
     backend: dogpile.cache.redis
   pds:
-    staging_url: {PDS_STAGING_URL}
-    prod_url: {PDS_PROD_URL}
+    staging_url: '{PDS_STAGING_URL}'
+    prod_url: '{PDS_PROD_URL}'
     fme_token: 
     owncloud_internal_url:
     owncloud_external_url:
     owncloud_user:
     owncloud_password:
-    smtp_server: {PDS_SMTP_SERVER}
-    bcc_address: {PDS_BCC_ADDRESS}
+    smtp_server: '{PDS_SMTP_SERVER}'
+    bcc_address: '{PDS_BCC_ADDRESS}'
   casipo: {bcc_address: '{CASIPO_BCC_ADDRESS}', fme_token: '{CASIPO_FME_TOKEN}', owncloud_external_url: '{CASIPO_OWNCLOUD_EXTERNAL_URL}', owncloud_internal_url: '{CASIPO_OWNCLOUD_INTERNAL_URL}',
     owncloud_password: '{CASIPO_OWNCLOUD_PASSWORD}', owncloud_user: '{CASIPO_OWNCLOUD_USER}', prod_url: '{CASIPO_PROD_URL}', smtp_server: '{CASIPO_SMTP_SERVER}',
     staging_url: '{CASIPO_STAGING_URL}'}