diff --git a/reactos/ntoskrnl/io/flush.c b/reactos/ntoskrnl/io/flush.c
index 8e800b781f4..fd5b4205080 100644
--- a/reactos/ntoskrnl/io/flush.c
+++ b/reactos/ntoskrnl/io/flush.c
@@ -23,7 +23,8 @@ NTSTATUS
 STDCALL
 NtFlushWriteBuffer(VOID)
 {
-	UNIMPLEMENTED;
+	KeFlushWriteBuffer();
+	return STATUS_SUCCESS;
 }
 
 NTSTATUS