1 files changed, 4 insertions, 4 deletions
diff --git a/src/libsyntax/ext/tt/macro_rules.rs b/src/libsyntax/ext/tt/macro_rules.rs
index 75f46f2e02c..bbe49d409ea 100644
--- a/src/libsyntax/ext/tt/macro_rules.rs
+++ b/src/libsyntax/ext/tt/macro_rules.rs
@@ -189,10 +189,10 @@ fn generic_extension<'cx>(cx: &'cx mut ExtCtxt,
                         err.note("you might be missing a comma");
                     } else {
                         err.span_suggestion_short_with_applicability(
-                            comma_span,
-                            "missing comma here",
-                            ", ".to_string(),
-                            Applicability::Unspecified,
+                                                comma_span,
+                                                "missing comma here",
+                                                ", ".to_string(),
+                                                Applicability::MachineApplicable,
                         );
                     }
                 }