1 files changed, 2 insertions, 2 deletions
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index 425c517cb29..c3bac0cf57c 100644
--- a/src/libsyntax/feature_gate.rs
+++ b/src/libsyntax/feature_gate.rs
@@ -403,11 +403,11 @@ impl<'a> Context<'a> {
                                for the compiler");
         } else {
             self.gate_feature("custom_attribute", attr.span,
-                       format!("The attribute `{}` is currently \
+                       &format!("The attribute `{}` is currently \
                                 unknown to the the compiler and \
                                 may have meaning \
                                 added to it in the future",
-                                name).as_slice());
+                                name));
         }
     }
 }