diff --git a/dlls/mswsock/mswsock.spec b/dlls/mswsock/mswsock.spec
index 6f1b136539a..521b3a49117 100644
--- a/dlls/mswsock/mswsock.spec
+++ b/dlls/mswsock/mswsock.spec
@@ -1,7 +1,7 @@
 @ stdcall AcceptEx(long long ptr long long long ptr ptr)
 @ stdcall EnumProtocolsA(ptr ptr ptr) ws2_32.WSAEnumProtocolsA
 @ stdcall EnumProtocolsW(ptr ptr ptr) ws2_32.WSAEnumProtocolsW
-@ stub GetAcceptExSockaddrs
+@ stdcall GetAcceptExSockaddrs(ptr long long long ptr ptr ptr ptr)
 @ stub GetAddressByNameA
 @ stub GetAddressByNameW
 @ stub GetNameByTypeA
diff --git a/dlls/rpcrt4/rpcrt4.spec b/dlls/rpcrt4/rpcrt4.spec
index 11750679766..b238b612e61 100644
--- a/dlls/rpcrt4/rpcrt4.spec
+++ b/dlls/rpcrt4/rpcrt4.spec
@@ -247,7 +247,7 @@
 @ stdcall NdrInterfacePointerMemorySize(ptr ptr)
 @ stdcall NdrInterfacePointerUnmarshall(ptr ptr ptr long)
 @ stub NdrIsAppDoneWithPipes
-@ stub NdrMapCommAndFaultStatus
+@ stdcall NdrMapCommAndFaultStatus(ptr ptr ptr long)
 @ stub NdrMarkNextActivePipe
 @ stub NdrMesProcEncodeDecode2
 @ stub NdrMesProcEncodeDecode