diff --git a/src/debuginfo/mod.rs b/src/debuginfo/mod.rs
index c471da83d..14a593a71 100644
--- a/src/debuginfo/mod.rs
+++ b/src/debuginfo/mod.rs
@@ -66,7 +66,7 @@ impl<'tcx> DebugContext<'tcx> {
             rustc_interface::util::version_str().unwrap_or("unknown version"),
             cranelift_codegen::VERSION,
         );
-        let comp_dir = tcx.sess.opts.working_dir.to_string_lossy(false).into_owned();
+        let comp_dir = tcx.sess.opts.working_dir.to_string_lossy(FileNameDisplayPreference::Remapped).into_owned();
         let (name, file_info) = match tcx.sess.local_crate_source_file.clone() {
             Some(path) => {
                 let name = path.to_string_lossy().into_owned();
diff --git a/src/lib.rs b/src/lib.rs
index 4ef53663c..6c7c8cbc3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -74,7 +74,7 @@ mod vtable;
 mod prelude {
     pub(crate) use std::convert::{TryFrom, TryInto};
 
-    pub(crate) use rustc_span::Span;
+    pub(crate) use rustc_span::{Span, FileNameDisplayPreference};
 
     pub(crate) use rustc_hir::def_id::{DefId, LOCAL_CRATE};
     pub(crate) use rustc_middle::bug;