diff --git a/web/sites/default/services.pantheon.preproduction.yml b/web/sites/default/services.pantheon.preproduction.yml
index 343ddf6586c6885e3905f9a06208c5c751789ce5..0fb6cd39a1f59ffd171419d7991d1c8bb7c98b00 100644
--- a/web/sites/default/services.pantheon.preproduction.yml
+++ b/web/sites/default/services.pantheon.preproduction.yml
@@ -12,7 +12,7 @@
 #
 parameters:
   twig.config:
-    debug: true
+    debug: false
   session.storage.options:
     # Set session lifetime (in seconds), i.e. the time from the user's last
     # visit to the active session may be deleted by the session garbage