diff --git a/src/libsyntax/ext/base.rs b/src/libsyntax/ext/base.rs
index 31fcf857604f..08098b71ce45 100644
--- a/src/libsyntax/ext/base.rs
+++ b/src/libsyntax/ext/base.rs
@@ -31,7 +31,7 @@ use std::unstable::dynamic_lib::DynamicLibrary;
 // ast::MacInvocTT.
 
 pub struct MacroDef {
-    name: @str,
+    name: ~str,
     ext: SyntaxExtension
 }
 
diff --git a/src/libsyntax/ext/tt/macro_rules.rs b/src/libsyntax/ext/tt/macro_rules.rs
index 97981f87393c..c179e9959e0b 100644
--- a/src/libsyntax/ext/tt/macro_rules.rs
+++ b/src/libsyntax/ext/tt/macro_rules.rs
@@ -21,7 +21,7 @@ use ext::tt::macro_parser::{parse, parse_or_else};
 use parse::lexer::{new_tt_reader, Reader};
 use parse::parser::Parser;
 use parse::attr::ParserAttr;
-use parse::token::{get_ident_interner, special_idents, gensym_ident, ident_to_str};
+use parse::token::{get_ident_interner, special_idents, gensym_ident};
 use parse::token::{FAT_ARROW, SEMI, NtMatchers, NtTT, EOF};
 use parse::token;
 use print;
@@ -231,7 +231,7 @@ pub fn add_new_extension(cx: &mut ExtCtxt,
     };
 
     return MRDef(MacroDef {
-        name: ident_to_str(&name),
+        name: token::get_ident(name.name).get().to_str(),
         ext: NormalTT(exp, Some(sp))
     });
 }