diff --git a/dlls/rpcrt4/rpcrt4.spec b/dlls/rpcrt4/rpcrt4.spec
index ca5f45fdd4d..82f43344fd1 100644
--- a/dlls/rpcrt4/rpcrt4.spec
+++ b/dlls/rpcrt4/rpcrt4.spec
@@ -158,7 +158,7 @@
 @ stdcall NdrCStdStubBuffer_Release(ptr ptr)
 @ stdcall NdrClearOutParameters(ptr ptr ptr)
 @ varargs NdrClientCall2(ptr ptr)
-@ stub NdrClientCall
+@ varargs NdrClientCall(ptr ptr) NdrClientCall2
 @ stdcall NdrClientContextMarshall(ptr ptr long)
 @ stdcall NdrClientContextUnmarshall(ptr ptr ptr)
 @ stub NdrClientInitialize