diff --git a/data/grid5000/sites/nantes/servers/srv-2.json b/data/grid5000/sites/nantes/servers/srv-2.json
index f4400ff70dc41610f2c8692539b91c4e93d4f187..c661b0b5562e73016c54c6b920725af257064726 100644
--- a/data/grid5000/sites/nantes/servers/srv-2.json
+++ b/data/grid5000/sites/nantes/servers/srv-2.json
@@ -1,7 +1,4 @@
 {
-  "alias": [
-    "ntp"
-  ],
   "kind": "physical",
   "network_adapters": {
     "bmc": {
diff --git a/data/grid5000/sites/nantes/servers/srv-3.json b/data/grid5000/sites/nantes/servers/srv-3.json
index e9c3071f8a6b34e3fdb5c8c5cfd8b29eb9a3988d..27d6c04f7640dc5954fa16b2a0ea689207d3b00a 100644
--- a/data/grid5000/sites/nantes/servers/srv-3.json
+++ b/data/grid5000/sites/nantes/servers/srv-3.json
@@ -1,4 +1,7 @@
 {
+  "alias": [
+    "ntp"
+  ],
   "kind": "physical",
   "network_adapters": {
     "bmc": {
diff --git a/input/grid5000/sites/nantes/servers/servers.yaml b/input/grid5000/sites/nantes/servers/servers.yaml
index 7d2a0d03bdaeb22fc912ac15eab390d87e0479ce..c6a9dcfb92af029b0434b29bb2ee68eb875d78ed 100644
--- a/input/grid5000/sites/nantes/servers/servers.yaml
+++ b/input/grid5000/sites/nantes/servers/servers.yaml
@@ -26,8 +26,6 @@ srv-data:
 
 srv-2:
   kind: physical
-  alias:
-    - ntp
   warranty: 2019-11
   serial: JP2YG5J
   network_adapters:
@@ -40,6 +38,8 @@ srv-2:
 
 srv-3:
   kind: physical
+  alias:
+    - ntp
   warranty: 2019-11
   serial: 9TJRXW2
   network_adapters: