diff --git a/gcc/rust/typecheck/rust-hir-type-check-type.cc b/gcc/rust/typecheck/rust-hir-type-check-type.cc
index 60a20c30cbf..1b1f6b6afe1 100644
--- a/gcc/rust/typecheck/rust-hir-type-check-type.cc
+++ b/gcc/rust/typecheck/rust-hir-type-check-type.cc
@@ -356,7 +356,7 @@ TypeCheckType::resolve_root_path (HIR::TypePath &path, size_t *offset,
 	  if (is_root)
 	    {
 	      rust_error_at (seg->get_locus (),
-			     "unknown reference for resolved name: %<%s%>",
+			     "unknown reference for resolved name: %qs",
 			     seg->get_ident_segment ().as_string ().c_str ());
 	      return new TyTy::ErrorType (path.get_mappings ().get_hirid ());
 	    }