diff --git a/src/test/run-pass/issue-2930.rs b/src/test/run-pass/issue-2930.rs
index 2e673f8fe13e..0215b3121813 100644
--- a/src/test/run-pass/issue-2930.rs
+++ b/src/test/run-pass/issue-2930.rs
@@ -23,5 +23,5 @@ mod stream {
 fn main() {
     let (bc, _bp) = stream::init();
 
-    stream::client::send(bc, "abc");
+    stream::client::send(bc, ~"abc");
 }
diff --git a/src/test/run-pass/task-comm-16.rs b/src/test/run-pass/task-comm-16.rs
index 2d1c72df713c..bcf993e2d275 100644
--- a/src/test/run-pass/task-comm-16.rs
+++ b/src/test/run-pass/task-comm-16.rs
@@ -33,7 +33,7 @@ fn test_vec() {
 
 fn test_str() {
     let (ch, po) = pipes::stream();
-    let s0 = "test";
+    let s0 = ~"test";
     ch.send(s0);
     let s1 = po.recv();
     assert (s1[0] == 't' as u8);