diff --git a/drivers/tty/moxa.h b/drivers/tty/moxa.h
index 563d2dce80b3c..f0a4381b68614 100644
--- a/drivers/tty/moxa.h
+++ b/drivers/tty/moxa.h
@@ -138,7 +138,7 @@
 #define IntrQuit	0x40	/* received QUIT code             */
 #define IntrEOF 	0x80	/* received EOF code              */
 
-#define IntrRxTrigger 	0x100	/* rx data count reach tigger value */
+#define IntrRxTrigger 	0x100	/* rx data count reach trigger value */
 #define IntrTxTrigger 	0x200	/* tx data count below trigger value */
 
 #define Magic_no	(Config_base + 0)