refCounted not @safe?

[Steven Schveighoffer]

struct S {}

void main() @safe
{
    import std.typecons;
    auto s = S().refCounted;
}

Error: @safe function D main cannot call @system function 
std.typecons.refCounted!(S).refCounted
Error: @safe function D main cannot call @system destructor 
std.typecons.RefCounted!(S, 
cast(RefCountedAutoInitialize)0).RefCounted.~this

How do I do refCounted in @safe code?