diff --git a/reactos/dll/win32/winspool/winspool.spec b/reactos/dll/win32/winspool/winspool.spec
index 8227e5290cb..1dc1fd24665 100644
--- a/reactos/dll/win32/winspool/winspool.spec
+++ b/reactos/dll/win32/winspool/winspool.spec
@@ -153,7 +153,7 @@
 @ stdcall GetPrintProcessorDirectoryW(wstr wstr long ptr long ptr)
 @ stub GetSpoolFileHandle
 @ stub IsValidDevmodeA
-@ stub IsValidDevmodeW
+@ stdcall -stub IsValidDevmodeW(ptr long)
 @ stdcall OpenPrinterA(str ptr ptr)
 @ stdcall OpenPrinterW(wstr ptr ptr)
 @ stub PlayGdiScriptOnPrinterIC