1 files changed, 3 insertions, 3 deletions
diff --git a/compiler/rustc_builtin_macros/src/trace_macros.rs b/compiler/rustc_builtin_macros/src/trace_macros.rs
index e076aa6da73..696d99004ba 100644
--- a/compiler/rustc_builtin_macros/src/trace_macros.rs
+++ b/compiler/rustc_builtin_macros/src/trace_macros.rs
@@ -1,6 +1,6 @@
 use crate::errors;
 use rustc_ast::tokenstream::{TokenStream, TokenTree};
-use rustc_expand::base::{self, ExtCtxt};
+use rustc_expand::base::{DummyResult, ExpandResult, ExtCtxt, MacroExpanderResult};
 use rustc_span::symbol::kw;
 use rustc_span::Span;
 
@@ -8,7 +8,7 @@ pub fn expand_trace_macros(
     cx: &mut ExtCtxt<'_>,
     sp: Span,
     tt: TokenStream,
-) -> Box<dyn base::MacResult + 'static> {
+) -> MacroExpanderResult<'static> {
     let mut cursor = tt.trees();
     let mut err = false;
     let value = match &cursor.next() {
@@ -26,5 +26,5 @@ pub fn expand_trace_macros(
         cx.set_trace_macros(value);
     }
 
-    base::DummyResult::any_valid(sp)
+    ExpandResult::Ready(DummyResult::any_valid(sp))
 }