diff --git a/drivers/serial/8250.h b/drivers/serial/8250.h
index 4f3d62f..cd5c3dd 100644
--- a/drivers/serial/8250.h
+++ b/drivers/serial/8250.h
@@ -51,6 +51,8 @@
 #define UART_CAP_AFE	(1 << 11)	/* MCR-based hw flow control */
 #define UART_CAP_UUE	(1 << 12)	/* UART needs IER bit 6 set (Xscale) */
 
+#define UART_BUG_QUOT	(1 << 0)	/* UART has buggy quot LSB */
+
 #if defined(__i386__) && (defined(CONFIG_M386) || defined(CONFIG_M486))
 #define _INLINE_ inline
 #else