diff --git a/spec/model/data/garderos:generic:prompt.yaml b/spec/model/data/garderos:generic:prompt.yaml
index c7c984b31..dc32649bf 100644
--- a/spec/model/data/garderos:generic:prompt.yaml
+++ b/spec/model/data/garderos:generic:prompt.yaml
@@ -1,2 +1,4 @@
 pass:
   - "LAB-R1234_Garderos# "
+fail:
+  - "\e[4m\rLAB-R1234_Garderos#\e[m "