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path: root/src/libsyntax/ext/pipes/ast_builder.rs
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-rw-r--r--src/libsyntax/ext/pipes/ast_builder.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsyntax/ext/pipes/ast_builder.rs b/src/libsyntax/ext/pipes/ast_builder.rs
index e6f0cdde8c1..76b70225c6c 100644
--- a/src/libsyntax/ext/pipes/ast_builder.rs
+++ b/src/libsyntax/ext/pipes/ast_builder.rs
@@ -138,7 +138,7 @@ pub trait ext_ctxt_ast_builder {
     fn strip_bounds(&self, bounds: &Generics) -> Generics;
 }
 
-impl ext_ctxt_ast_builder for ext_ctxt {
+impl ext_ctxt_ast_builder for @ext_ctxt {
     fn ty_option(&self, ty: @ast::Ty) -> @ast::Ty {
         self.ty_path_ast_builder(path_global(~[
             self.ident_of(~"core"),