diff --git a/src/include/86box/machine.h b/src/include/86box/machine.h
index 39fb1a933..f2ca1d591 100644
--- a/src/include/86box/machine.h
+++ b/src/include/86box/machine.h
@@ -469,6 +469,7 @@ extern int machine_at_quadt386sx_init(const machine_t *);
 extern int machine_at_award286_init(const machine_t *);
 extern int machine_at_gdc212m_init(const machine_t *);
 extern int machine_at_gw286ct_init(const machine_t *);
+extern int machine_at_drsm35286_init(const machine_t *);
 extern int machine_at_senor_scat286_init(const machine_t *);
 extern int machine_at_super286c_init(const machine_t *);
 extern int machine_at_super286tr_init(const machine_t *);