diff --git a/src/librustc/middle/lang_items.rs b/src/librustc/middle/lang_items.rs
index 3418fc649da0..08e55df5b368 100644
--- a/src/librustc/middle/lang_items.rs
+++ b/src/librustc/middle/lang_items.rs
@@ -295,9 +295,9 @@ impl<'self> LanguageItemCollector<'self> {
                    -> LanguageItemCollector<'a> {
         let mut item_refs = HashMap::new();
 
-        item_refs.insert(@"const", FreezeTraitLangItem as uint);
+        item_refs.insert(@"freeze", FreezeTraitLangItem as uint);
         item_refs.insert(@"copy", CopyTraitLangItem as uint);
-        item_refs.insert(@"owned", SendTraitLangItem as uint);
+        item_refs.insert(@"send", SendTraitLangItem as uint);
         item_refs.insert(@"sized", SizedTraitLangItem as uint);
 
         item_refs.insert(@"drop", DropTraitLangItem as uint);
diff --git a/src/libstd/os.rs b/src/libstd/os.rs
index 590292d0d327..400a93ee28f4 100644
--- a/src/libstd/os.rs
+++ b/src/libstd/os.rs
@@ -146,7 +146,7 @@ pub mod win32 {
     pub fn as_utf16_p<T>(s: &str, f: &fn(*u16) -> T) -> T {
         let mut t = s.to_utf16();
         // Null terminate before passing on.
-        t += [0u16];
+        t.push(0u16);
         vec::as_imm_buf(t, |buf, _len| f(buf))
     }
 }