diff --git a/tst/winfsp-tests/exec-test.c b/tst/winfsp-tests/exec-test.c
index b19bd1d1..c0c910eb 100644
--- a/tst/winfsp-tests/exec-test.c
+++ b/tst/winfsp-tests/exec-test.c
@@ -209,7 +209,7 @@ static void exec_delete_dotest(ULONG Flags, PWSTR Prefix, ULONG FileInfoTimeout)
             OPEN_EXISTING, 0, 0);
         if (INVALID_HANDLE_VALUE != Handle)
         {
-            DispositionInfo.Disposition = FILE_DISPOSITION_DELETE | FILE_DISPOSITION_POSIX_SEMANTICS;
+            DispositionInfo.Flags = FILE_DISPOSITION_DELETE | FILE_DISPOSITION_POSIX_SEMANTICS;
             Success = SetFileInformationByHandle(Handle,
                 21/*FileDispositionInfoEx*/, &DispositionInfo, sizeof DispositionInfo);
             ASSERT(!Success);
diff --git a/tst/winfsp-tests/winfsp-tests.h b/tst/winfsp-tests/winfsp-tests.h
index a87fc463..0ca156eb 100644
--- a/tst/winfsp-tests/winfsp-tests.h
+++ b/tst/winfsp-tests/winfsp-tests.h
@@ -156,7 +156,7 @@ typedef struct
 } MY_FILE_DISPOSITION_INFO;
 typedef struct
 {
-    UINT32 Disposition;
+    ULONG Flags;
 } MY_FILE_DISPOSITION_INFO_EX;
 
 void *memfs_start_ex(ULONG Flags, ULONG FileInfoTimeout);