diff --git a/drivers/serial/serial_sh.h b/drivers/serial/serial_sh.h
index f5e9854d13..341997c8ec 100644
--- a/drivers/serial/serial_sh.h
+++ b/drivers/serial/serial_sh.h
@@ -226,7 +226,8 @@ struct uart_port {
 # define SCSPTR3 0xffc60020		/* 16 bit SCIF */
 # define SCIF_ORER 0x0001		/* Overrun error bit */
 # define SCSCR_INIT(port)	0x38	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
-#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791)
+#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
+	defined(CONFIG_R8A7794)
 # define SCIF_ORER	0x0001
 # define SCSCR_INIT(port)	0x32	/* TIE=0,RIE=0,TE=1,RE=1,REIE=0, */
 #else