diff --git a/input/grid5000/sites/nancy/clusters/graffiti/graffiti_ip.yaml.erb b/input/grid5000/sites/nancy/clusters/graffiti/graffiti_ip.yaml.erb
index dbd280f46c28125184b1a77f1ed888ccd43806d7..283331708e491b65eeed78402d57f12fbabc31c4 100644
--- a/input/grid5000/sites/nancy/clusters/graffiti/graffiti_ip.yaml.erb
+++ b/input/grid5000/sites/nancy/clusters/graffiti/graffiti_ip.yaml.erb
@@ -31,10 +31,10 @@ nodes:
                      F4:02:70:9A:41:B0
                      F4:02:70:9A:42:A2
                      F4:02:70:9A:40:0E
-                     F4:02:70:9A:47:7A
+                     F4:02:70:9A:47:CA
                      4C:D9:8F:33:D7:EC
                      4C:D9:8F:2D:3C:88
-                     4C:D9:8F:2D:4D:3A
+                     4C:D9:8F:2D:4D:4A
                      F4:02:70:9A:4C:00
                    )[i-1] %>
 <% } %>