1 files changed, 2 insertions, 4 deletions
diff --git a/toolkit/mozapps/update/tests/unit_service_updater/marFileInUseStageFailurePartialSvc_win.js b/toolkit/mozapps/update/tests/unit_service_updater/marFileInUseStageFailurePartialSvc_win.js
index b41da12396..def7f8db9c 100644
--- a/toolkit/mozapps/update/tests/unit_service_updater/marFileInUseStageFailurePartialSvc_win.js
+++ b/toolkit/mozapps/update/tests/unit_service_updater/marFileInUseStageFailurePartialSvc_win.js
@@ -15,10 +15,8 @@ async function run_test() {
   gTestFiles = gTestFilesPartialSuccess;
   gTestDirs = gTestDirsPartialSuccess;
   await setupUpdaterTest(FILE_PARTIAL_MAR, false);
-  await runHelperFileInUse(
-    gTestFiles[11].relPathDir + gTestFiles[11].fileName,
-    false
-  );
+  const testFile = getTestFileByName("0exe0.exe");
+  await runHelperFileInUse(testFile.relPathDir + testFile.fileName, false);
   await stageUpdate(STATE_AFTER_STAGE, true);
   checkPostUpdateRunningFile(false);
   checkFilesAfterUpdateSuccess(getStageDirFile, true);