1 files changed, 2 insertions, 2 deletions
diff --git a/src/libsyntax_ext/proc_macro_decls.rs b/src/libsyntax_ext/proc_macro_decls.rs
index 2f78644dff2..08c40dde56c 100644
--- a/src/libsyntax_ext/proc_macro_decls.rs
+++ b/src/libsyntax_ext/proc_macro_decls.rs
@@ -8,7 +8,7 @@ use syntax::source_map::{ExpnInfo, ExpnKind, respan};
 use syntax::ext::base::{ExtCtxt, MacroKind};
 use syntax::ext::build::AstBuilder;
 use syntax::ext::expand::ExpansionConfig;
-use syntax::ext::hygiene::Mark;
+use syntax::ext::hygiene::ExpnId;
 use syntax::mut_visit::MutVisitor;
 use syntax::parse::ParseSess;
 use syntax::ptr::P;
@@ -346,7 +346,7 @@ fn mk_decls(
     custom_attrs: &[ProcMacroDef],
     custom_macros: &[ProcMacroDef],
 ) -> P<ast::Item> {
-    let span = DUMMY_SP.fresh_expansion(Mark::root(), ExpnInfo::allow_unstable(
+    let span = DUMMY_SP.fresh_expansion(ExpnId::root(), ExpnInfo::allow_unstable(
         ExpnKind::Macro(MacroKind::Attr, sym::proc_macro), DUMMY_SP, cx.parse_sess.edition,
         [sym::rustc_attrs, sym::proc_macro_internals][..].into(),
     ));