diff --git a/app/services/quickwin_snapshot_service.py b/app/services/quickwin_snapshot_service.py
index ea98385..210c51e 100644
--- a/app/services/quickwin_snapshot_service.py
+++ b/app/services/quickwin_snapshot_service.py
@@ -111,10 +111,13 @@ def snapshot_server(hostname, vm_name, branch, db, snap_name=None):
     if not PYVMOMI_OK:
         return {"ok": False, "vcenter": "", "detail": "pyvmomi non installe", "skipped": True}
 
-    vc_user = _get_secret(db, "vcenter_user")
-    vc_pass = _get_secret(db, "vcenter_pass")
+    # Fallback historique : vcenter_user/vcenter_pass (legacy) ou vsphere_user/vsphere_pass (Settings UI)
+    vc_user = _get_secret(db, "vcenter_user") or _get_secret(db, "vsphere_user")
+    vc_pass = _get_secret(db, "vcenter_pass") or _get_secret(db, "vsphere_pass")
     if not vc_user or not vc_pass:
-        return {"ok": False, "vcenter": "", "detail": "Credentials vCenter manquants (vcenter_user/vcenter_pass dans Settings > Secrets)", "skipped": True}
+        return {"ok": False, "vcenter": "",
+                "detail": "Credentials vCenter manquants (renseigner vsphere_user/vsphere_pass dans Settings > vSphere)",
+                "skipped": True}
 
     search_name = vm_name or hostname
     if not snap_name: