diff --git a/tests/language_strong/top_level_prefixed_library_test.lib b/tests/language_strong/top_level_prefixed_library_test.lib
index d75930dd976d..3347464f222c 100644
--- a/tests/language_strong/top_level_prefixed_library_test.lib
+++ b/tests/language_strong/top_level_prefixed_library_test.lib
@@ -2,5 +2,5 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library TopLevelPrefixedLibrary;
+library TopLevelMultipleFilesTest.dart;
 part 'top_level_file2.dart';