diff --git a/app/gui/view/graph-editor/src/builtin/visualization/native/error.rs b/app/gui/view/graph-editor/src/builtin/visualization/native/error.rs
index c5c98ebd586f..c4878b3692d0 100644
--- a/app/gui/view/graph-editor/src/builtin/visualization/native/error.rs
+++ b/app/gui/view/graph-editor/src/builtin/visualization/native/error.rs
@@ -31,12 +31,14 @@ const PADDING_TEXT: f32 = 10.0;
 /// [here](http://dev.enso.org/docs/ide/product/visualizations.html).
 pub const PREPROCESSOR_CODE: &str = r#"
 x ->
-    result = Builtins.Ref.new '{ message: ""}'
+    result = Builtins.Ref.new '{ "kind": "Dataflow", "message": "Hello!"}'
+    Builtins.Ref.get result
+"#;
+/*
     x.catch err->
         message = err.to_display_text
         Builtins.Ref.put result ('{ "kind": "Dataflow", "message": ' + message.to_json.to_text + '}')
-    Builtins.Ref.get result
-"#;
+ */
 
 /// The context module for the `PREPROCESSOR_CODE`. See there.
 pub const PREPROCESSOR_MODULE: &str = "Standard.Base.Main";