diff --git a/nixos/modules/programs/tsm-client.nix b/nixos/modules/programs/tsm-client.nix
index 6cb225d102de..67b9f6d7a362 100644
--- a/nixos/modules/programs/tsm-client.nix
+++ b/nixos/modules/programs/tsm-client.nix
@@ -144,7 +144,7 @@ let
     };
     config.name = mkDefault name;
     # Client system-options file directives are explained here:
-    # https://www.ibm.com/docs/en/spectrum-protect/8.1.13?topic=commands-processing-options
+    # https://www.ibm.com/docs/en/storage-protect/8.1.20?topic=commands-processing-options
     config.extraConfig =
       mapAttrs (lib.trivial.const mkDefault) (
         {
@@ -173,7 +173,7 @@ let
 
   options.programs.tsmClient = {
     enable = mkEnableOption (lib.mdDoc ''
-      IBM Spectrum Protect (Tivoli Storage Manager, TSM)
+      IBM Storage Protect (Tivoli Storage Manager, TSM)
       client command line applications with a
       client system-options file "dsm.sys"
     '');
@@ -251,7 +251,7 @@ let
   ];
 
   dsmSysText = ''
-    ****  IBM Spectrum Protect (Tivoli Storage Manager)
+    ****  IBM Storage Protect (Tivoli Storage Manager)
     ****  client system-options file "dsm.sys".
     ****  Do not edit!
     ****  This file is generated by NixOS configuration.
diff --git a/nixos/modules/services/backup/tsm.nix b/nixos/modules/services/backup/tsm.nix
index c4de0b16d47d..8968321f3cee 100644
--- a/nixos/modules/services/backup/tsm.nix
+++ b/nixos/modules/services/backup/tsm.nix
@@ -10,7 +10,7 @@ let
   options.services.tsmBackup = {
     enable = mkEnableOption (lib.mdDoc ''
       automatic backups with the
-      IBM Spectrum Protect (Tivoli Storage Manager, TSM) client.
+      IBM Storage Protect (Tivoli Storage Manager, TSM) client.
       This also enables
       {option}`programs.tsmClient.enable`
     '');
@@ -81,7 +81,7 @@ in
     programs.tsmClient.servers.${cfg.servername}.passwdDir =
       mkDefault "/var/lib/tsm-backup/password";
     systemd.services.tsm-backup = {
-      description = "IBM Spectrum Protect (Tivoli Storage Manager) Backup";
+      description = "IBM Storage Protect (Tivoli Storage Manager) Backup";
       # DSM_LOG needs a trailing slash to have it treated as a directory.
       # `/var/log` would be littered with TSM log files otherwise.
       environment.DSM_LOG = "/var/log/tsm-backup/";
@@ -89,7 +89,7 @@ in
       environment.HOME = "/var/lib/tsm-backup";
       serviceConfig = {
         # for exit status description see
-        # https://www.ibm.com/docs/en/spectrum-protect/8.1.13?topic=clients-client-return-codes
+        # https://www.ibm.com/docs/en/storage-protect/8.1.20?topic=clients-client-return-codes
         SuccessExitStatus = "4 8";
         # The `-se` option must come after the command.
         # The `-optfile` option suppresses a `dsm.opt`-not-found warning.