2 files changed, 2 insertions, 2 deletions
diff --git a/compiler/rustc_builtin_macros/src/compile_error.rs b/compiler/rustc_builtin_macros/src/compile_error.rs
index aeb3bb80045..5efc5a4e3ee 100644
--- a/compiler/rustc_builtin_macros/src/compile_error.rs
+++ b/compiler/rustc_builtin_macros/src/compile_error.rs
@@ -18,7 +18,7 @@ pub fn expand_compile_error<'cx>(
         reason = "diagnostic message is specified by user"
     )]
     #[expect(rustc::untranslatable_diagnostic, reason = "diagnostic message is specified by user")]
-    cx.span_err(sp, var.as_str());
+    cx.span_err(sp, var.to_string());
 
     DummyResult::any(sp)
 }
diff --git a/compiler/rustc_builtin_macros/src/errors.rs b/compiler/rustc_builtin_macros/src/errors.rs
index d0d78646009..f1ab279daba 100644
--- a/compiler/rustc_builtin_macros/src/errors.rs
+++ b/compiler/rustc_builtin_macros/src/errors.rs
@@ -377,7 +377,7 @@ impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for EnvNotDefined {
                 rustc::untranslatable_diagnostic,
                 reason = "cannot translate user-provided messages"
             )]
-            handler.struct_diagnostic(msg.as_str())
+            handler.struct_diagnostic(msg.to_string())
         } else {
             handler.struct_diagnostic(crate::fluent_generated::builtin_macros_env_not_defined)
         };