diff --git a/src/include/86box/machine.h b/src/include/86box/machine.h
index 0314ca425..5ab578d04 100644
--- a/src/include/86box/machine.h
+++ b/src/include/86box/machine.h
@@ -276,9 +276,6 @@ extern int  machine_at_olim300_15_init(const machine_t *);
 
 extern int  machine_at_ncrpc916sx_init(const machine_t *);
 
-extern int	machine_at_ncrpc8_init(const machine_t *);
-extern int	machine_at_ncr3302_init(const machine_t *);
-
 extern int	machine_at_awardsx_init(const machine_t *);
 #if defined(DEV_BRANCH) && defined(USE_M6117)
 extern int	machine_at_arb1375_init(const machine_t *);