diff --git a/nixbld-etc-nixos/rt.nix b/nixbld-etc-nixos/rt.nix
index 09549ef..6aaa4ca 100644
--- a/nixbld-etc-nixos/rt.nix
+++ b/nixbld-etc-nixos/rt.nix
@@ -93,6 +93,7 @@ let
 
       # Web Interface (Transaction display)
       Set($MaxInlineBody, 0);
+      Set($SuppressInlineTextFiles, 1);
 
       # Web Interface (Administrative interface)
       Set($ShowRTPortal, 0);