diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 4c985e6b3784b0b611413c74deba61a98c086997..4e1e80adaf11f4baae5d24e42dcfaaf1be2e26b7 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -860,7 +860,7 @@ imx_console_setup(struct console *co, char *options)
 	return uart_set_options(&sport->port, co, baud, parity, bits, flow);
 }
 
-extern struct uart_driver imx_reg;
+static struct uart_driver imx_reg;
 static struct console imx_console = {
 	.name		= "ttySMX",
 	.write		= imx_console_write,