1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsyntax/ext/deriving/encodable.rs b/src/libsyntax/ext/deriving/encodable.rs
index 8a1c3933f51..b1df8405d76 100644
--- a/src/libsyntax/ext/deriving/encodable.rs
+++ b/src/libsyntax/ext/deriving/encodable.rs
@@ -321,7 +321,7 @@ fn expand_deriving_encodable_struct_method(
             unnamed_field => {
                 cx.span_unimpl(
                     span,
-                    ~"unnamed fields with `deriving(Encodable)`"
+                    "unnamed fields with `deriving(Encodable)`"
                 );
             }
         }