diff --git a/doc/tutorial.md b/doc/tutorial.md
index e6c414c186df..1d7a5a9585a8 100644
--- a/doc/tutorial.md
+++ b/doc/tutorial.md
@@ -3002,8 +3002,8 @@ Here is the code for the parent task:
 
 let (from_child, to_child) = DuplexStream();
 
-do spawn |to_child| {
-    stringifier();
+do spawn || {
+    stringifier(to_child);
 };
 
 from_child.send(22u);
diff --git a/src/libstd/std.rc b/src/libstd/std.rc
index 91a4ff23c199..6945c7e1815b 100644
--- a/src/libstd/std.rc
+++ b/src/libstd/std.rc
@@ -18,7 +18,7 @@ import core::*;
 export net, net_tcp, net_ip, net_url;
 export uv, uv_ll, uv_iotask, uv_global_loop;
 export c_vec, timer;
-export sync, arc;
+export sync, arc, comm;
 export bitv, deque, fun_treemap, list, map;
 export smallintmap, sort, treemap;
 export rope, arena, par;