diff --git a/tools/tag_obsolete_os.py b/tools/tag_obsolete_os.py
index 0401ec1..b75a7d6 100644
--- a/tools/tag_obsolete_os.py
+++ b/tools/tag_obsolete_os.py
@@ -70,12 +70,18 @@ def main():
     conn = engine.connect().execution_options(isolation_level="AUTOCOMMIT")
 
     # Etend le CHECK constraint pour accepter 'obsolete' (le reste du code l'utilise)
-    print("[INFO] Etend CHECK licence_support (active/obsolete/eol/els/missing)...")
+    print("[INFO] Etend CHECK licence_support (active/obsolete/els/missing)...")
     conn.execute(text("ALTER TABLE servers DROP CONSTRAINT IF EXISTS servers_licence_support_check"))
     conn.execute(text(
         "ALTER TABLE servers ADD CONSTRAINT servers_licence_support_check "
-        "CHECK (licence_support IN ('active', 'obsolete', 'eol', 'els', 'missing') OR licence_support IS NULL)"
+        "CHECK (licence_support IN ('active', 'obsolete', 'els', 'missing') OR licence_support IS NULL)"
     ))
+    # Normalise les anciennes valeurs 'eol' -> 'obsolete' (code/filtre utilise 'obsolete')
+    n_eol = conn.execute(text(
+        "UPDATE servers SET licence_support='obsolete' WHERE licence_support='eol'"
+    )).rowcount
+    if n_eol:
+        print(f"[INFO] Normalise {n_eol} 'eol' -> 'obsolete'")
 
     rows = conn.execute(text("""
         SELECT id, hostname, os_version, licence_support