diff --git a/dll/win32/ws2_32/ws2_32.spec b/dll/win32/ws2_32/ws2_32.spec
index 42efc68af94..a99c870bd63 100644
--- a/dll/win32/ws2_32/ws2_32.spec
+++ b/dll/win32/ws2_32/ws2_32.spec
@@ -111,7 +111,7 @@
 @ stdcall WSCInstallNameSpace(wstr wstr long long ptr)
 @ stdcall WSCInstallProvider(ptr wstr ptr long ptr)
 @ stdcall WSCUnInstallNameSpace(ptr)
-@ stdcall WSCUpdateProvider(ptr ptr long ptr)
+@ stdcall WSCUpdateProvider(ptr ptr ptr long ptr)
 @ stdcall WSCWriteNameSpaceOrder(ptr long)
 @ stdcall WSCWriteProviderOrder(ptr long)
 @ stdcall freeaddrinfo(ptr)