diff --git a/development/autotests/ctests-costs-benefits.txt b/development/autotests/ctests-costs-benefits.txt
index 611e031504..f542e00e81 100644
--- a/development/autotests/ctests-costs-benefits.txt
+++ b/development/autotests/ctests-costs-benefits.txt
@@ -132,3 +132,6 @@ ctests : export/templates/Articles/Hebrew_Article_.*(dvi|pdf|pdf2|pdf3)
 
 
 Report : Message-ID:<vjwr5fehwvule6jvommt4apgtpvw2eu4ovynjocwa33vab2x7i@2lu5ialnxxzy>
+
+Report : Message-ID:<iio6hf66ujaelhvnneqivhfp22xtty4fcgzswtrugu5gzwq2og@hcvqozvwou2l>
+ctests : (export/export/WrongDfnTagHandling_lyx23|export/examples/Welcome_lyx23)