diff --git a/reactos/dll/win32/kernel32/file/mailslot.c b/reactos/dll/win32/kernel32/file/mailslot.c
index c31993a3be0..629fef277e4 100644
--- a/reactos/dll/win32/kernel32/file/mailslot.c
+++ b/reactos/dll/win32/kernel32/file/mailslot.c
@@ -109,7 +109,7 @@ CreateMailslotW(LPCWSTR lpName,
 				 nMaxMessageSize,
 				 &DefaultTimeOut);
 
-   if (Status == STATUS_INVALID_DEVICE_REQUEST)
+   if (Status == STATUS_INVALID_DEVICE_REQUEST || Status == STATUS_NOT_SUPPORTED)
    {
        Status = STATUS_OBJECT_NAME_INVALID;
    }