diff --git a/nixos/modules/services/misc/taskserver/default.nix b/nixos/modules/services/misc/taskserver/default.nix
index 3a9669ddd26..62e35803117 100644
--- a/nixos/modules/services/misc/taskserver/default.nix
+++ b/nixos/modules/services/misc/taskserver/default.nix
@@ -38,7 +38,6 @@ let
     ${mkConfLine "request.limit" cfg.requestLimit}
 
     # client
-    ${mkConfLine "client.cert" cfg.client.cert}
     ${mkConfLine "client.allow" cfg.allowedClientIDs}
     ${mkConfLine "client.deny" cfg.disallowedClientIDs}
 
@@ -226,15 +225,6 @@ in {
         '';
       };
 
-      client.cert = mkOption {
-        type = types.nullOr types.path;
-        default = null;
-        description = ''
-          Fully qualified path of the client cert. This is used by the
-          <command>client</command> command.
-        '';
-      };
-
       server = {
         host = mkOption {
           type = types.str;