diff --git a/lib/refrepo/valid/data/homogeneity.yaml.erb b/lib/refrepo/valid/data/homogeneity.yaml.erb
index 9fed5214eb175fd643dc9e65473cf0f7b764473a..0b627616196a37715448998911d2389a200d7f2b 100644
--- a/lib/refrepo/valid/data/homogeneity.yaml.erb
+++ b/lib/refrepo/valid/data/homogeneity.yaml.erb
@@ -35,6 +35,22 @@ nancy:
   graffiti-[9-11]:
     - ~gpu_devices.nvidia2.vbios_version
     - ~gpu_devices.nvidia3.vbios_version
+  graffiti-13:
+    - ~gpu.gpu_model
+    - ~gpu.gpu_cores
+    - ~gpu_devices.nvidia0.vbios_version
+    - ~gpu_devices.nvidia0.memory
+    - ~gpu_devices.nvidia0.model
+    - ~gpu_devices.nvidia1.vbios_version
+    - ~gpu_devices.nvidia1.memory
+    - ~gpu_devices.nvidia1.model
+    - ~gpu_devices.nvidia2.vbios_version
+    - ~gpu_devices.nvidia2.memory
+    - ~gpu_devices.nvidia2.model
+    - ~gpu_devices.nvidia3.vbios_version
+    - ~gpu_devices.nvidia3.memory
+    - ~gpu_devices.nvidia3.model
+
   graphique-[1-2]:
     - ~gpu.gpu_model
     - ~gpu.gpu_cores