diff --git a/test/lisp/progmodes/csharp-ts-mode-resources/indent.erts b/test/lisp/progmodes/csharp-mode-resources/indent-ts.erts
similarity index 100%
rename from test/lisp/progmodes/csharp-ts-mode-resources/indent.erts
rename to test/lisp/progmodes/csharp-mode-resources/indent-ts.erts
diff --git a/test/lisp/progmodes/csharp-mode-tests.el b/test/lisp/progmodes/csharp-mode-tests.el
index f50fabf5836..2878fa601f2 100644
--- a/test/lisp/progmodes/csharp-mode-tests.el
+++ b/test/lisp/progmodes/csharp-mode-tests.el
@@ -26,5 +26,8 @@
 (ert-deftest csharp-mode-test-indentation ()
   (ert-test-erts-file (ert-resource-file "indent.erts")))
 
+(ert-deftest csharp-ts-mode-test-indentation ()
+  (ert-test-erts-file (ert-resource-file "indent-ts.erts")))
+
 (provide 'csharp-mode-tests)
 ;;; csharp-mode-tests.el ends here
diff --git a/test/lisp/progmodes/csharp-ts-mode-tests.el b/test/lisp/progmodes/csharp-ts-mode-tests.el
deleted file mode 100644
index 0df0211d86b..00000000000
--- a/test/lisp/progmodes/csharp-ts-mode-tests.el
+++ /dev/null
@@ -1,30 +0,0 @@
-;;; csharp-ts-mode-tests.el --- Tests for Tree-sitter-based C# mode  -*- lexical-binding: t; -*-
-
-;; Copyright (C) 2024 Free Software Foundation, Inc.
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
-
-;;; Code:
-
-(require 'ert)
-(require 'ert-x)
-(require 'csharp-mode)
-
-(ert-deftest csharp-ts-mode-test-indentation ()
-  (ert-test-erts-file (ert-resource-file "indent.erts")))
-
-(provide 'csharp-ts-mode-tests)
-;;; csharp-ts-mode-tests.el ends here