diff --git a/src/comp/util/ppaux.rs b/src/comp/util/ppaux.rs
index cf63cacb86d..cb51fd3ce18 100644
--- a/src/comp/util/ppaux.rs
+++ b/src/comp/util/ppaux.rs
@@ -47,9 +47,9 @@ fn ty_to_str(cx: &ctxt, typ: &t) -> str {
         let s = proto_to_str(proto);
         alt ident { some(i) { s += " "; s += i; } _ { } }
         s += "(";
-        let strs = [];
-        for a: arg  in inputs { strs += [fn_input_to_str(cx, a)]; }
-        s += str::connect(strs, ", ");
+        let strs = ~[];
+        for a: arg  in inputs { strs += ~[fn_input_to_str(cx, a)]; }
+        s += str::connect_ivec(strs, ", ");
         s += ")";
         if struct(cx, output) != ty_nil {
             alt cf {
diff --git a/src/test/stdtest/str.rs b/src/test/stdtest/str.rs
index 5acf99e9eaf..30f89926297 100644
--- a/src/test/stdtest/str.rs
+++ b/src/test/stdtest/str.rs
@@ -78,13 +78,13 @@ fn test_concat() {
 
 #[test]
 fn test_connect() {
-    fn t(v: &vec[str], sep: &str, s: &str) {
-        assert (str::eq(str::connect(v, sep), s));
+    fn t(v: &[str], sep: &str, s: &str) {
+        assert (str::eq(str::connect_ivec(v, sep), s));
     }
-    t(["you", "know", "I'm", "no", "good"], " ", "you know I'm no good");
-    let v: vec[str] = [];
+    t(~["you", "know", "I'm", "no", "good"], " ", "you know I'm no good");
+    let v: [str] = ~[];
     t(v, " ", "");
-    t(["hi"], " ", "hi");
+    t(~["hi"], " ", "hi");
 }
 
 #[test]