diff --git a/src/include/86box/keyboard.h b/src/include/86box/keyboard.h
index 5058c821e..846123627 100644
--- a/src/include/86box/keyboard.h
+++ b/src/include/86box/keyboard.h
@@ -242,6 +242,7 @@ extern const device_t keyboard_ps2_ps1_device;
 extern const device_t keyboard_ps2_ps1_pci_device;
 extern const device_t keyboard_ps2_xi8088_device;
 extern const device_t keyboard_ps2_ami_device;
+extern const device_t keyboard_ps2_holtek_device;
 extern const device_t keyboard_ps2_tg_ami_device;
 extern const device_t keyboard_ps2_tg_ami_green_device;
 extern const device_t keyboard_ps2_olivetti_device;