diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 90dcc625f70..76db2fef465 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -393,8 +393,8 @@ static const char *ftdi_chip_name[] = {
 #define FTDI_STATUS_B1_MASK	(FTDI_RS_BI)
 /* End TIOCMIWAIT */
 
-#define FTDI_IMPL_ASYNC_FLAGS = ( ASYNC_SPD_HI | ASYNC_SPD_VHI \
- ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP )
+#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \
+ | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP)
 
 /* function prototypes for a FTDI serial converter */
 static int  ftdi_sio_probe	(struct usb_serial *serial, const struct usb_device_id *id);