diff --git a/tst/winfsp-tests/mount-test.c b/tst/winfsp-tests/mount-test.c
index a3f25ab1..b5c1a582 100644
--- a/tst/winfsp-tests/mount-test.c
+++ b/tst/winfsp-tests/mount-test.c
@@ -165,7 +165,6 @@ void mount_volume_transact_dotest(PWSTR DeviceName, PWSTR Prefix)
     ASSERT(0 == wcsncmp(L"\\Device\\Volume{", VolumeName, 15));
     ASSERT(INVALID_HANDLE_VALUE != VolumeHandle);
 
-    StringCbPrintfW(FilePath, sizeof FilePath, L"\\\\?\\GLOBALROOT%s\\file0", VolumeName);
     StringCbPrintfW(FilePath, sizeof FilePath, L"%s%s\\file0",
         Prefix ? L"" : L"\\\\?\\GLOBALROOT", Prefix ? Prefix : VolumeName);
     Thread = (HANDLE)_beginthreadex(0, 0, mount_volume_transact_dotest_thread, FilePath, 0, 0);