diff --git a/src/include/86box/fdc.h b/src/include/86box/fdc.h
index f50e82b58..fa763b0ef 100644
--- a/src/include/86box/fdc.h
+++ b/src/include/86box/fdc.h
@@ -50,7 +50,8 @@ extern int fdc_type;
 #define FDC_FLAG_NSC		0x80	/* PC87306, PC87309 */
 #define FDC_FLAG_TOSHIBA	0x100	/* T1000, T1200 */
 #define FDC_FLAG_AMSTRAD	0x200	/* Non-AT Amstrad machines */
-#define FDC_FLAG_UMC	0x400	/* UMC UM8398 */
+#define FDC_FLAG_UMC		0x400	/* UMC UM8398 */
+#define FDC_FLAG_ALI		0x800	/* ALi M512x / M1543C */
 
 
 typedef struct {
@@ -194,6 +195,7 @@ extern const device_t	fdc_at_device;
 extern const device_t	fdc_at_actlow_device;
 extern const device_t	fdc_at_ps1_device;
 extern const device_t	fdc_at_smc_device;
+extern const device_t	fdc_at_ali_device;
 extern const device_t	fdc_at_winbond_device;
 extern const device_t	fdc_at_nsc_device;
 extern const device_t   fdc_dp8473_device;
diff --git a/src/include/86box/sio.h b/src/include/86box/sio.h
index 6f9cfa731..e0cf20fe0 100644
--- a/src/include/86box/sio.h
+++ b/src/include/86box/sio.h
@@ -19,6 +19,7 @@ extern void		vt82c686_sio_write(uint8_t addr, uint8_t val, void *priv);
 
 
 extern const device_t	acc3221_device;
+extern const device_t	ali5123_device;
 extern const device_t	f82c710_device;
 extern const device_t	f82c606_device;
 extern const device_t	fdc37c651_device;