diff --git a/src/rt/rustrt.def.in b/src/rt/rustrt.def.in
index baeac899f249..3514d602c513 100644
--- a/src/rt/rustrt.def.in
+++ b/src/rt/rustrt.def.in
@@ -23,6 +23,7 @@ rust_process_wait
 rust_ptr_eq
 rust_run_program
 rust_start
+new_rust_start
 size_of
 squareroot
 str_alloc