diff --git a/lib/refrepo/valid/data/homogeneity.yaml.erb b/lib/refrepo/valid/data/homogeneity.yaml.erb
index 84d33eb55d2884ba9b13c0319851ef2e66cd5bce..2a9583c24286ee2463bb1f25860e2d8c399129ed 100644
--- a/lib/refrepo/valid/data/homogeneity.yaml.erb
+++ b/lib/refrepo/valid/data/homogeneity.yaml.erb
@@ -55,6 +55,7 @@ nancy:
     - ~gpu_devices.nvidia1.vbios_version
   grisou-49:
     - -kavlan.eth4
+    - -kavlan6.eth4
     - ~network_adapters.eth4.enabled
     - ~network_adapters.eth4.mountable
     - -network_adapters.eth4.rate