diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index d73d7da..7f72f8c 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -522,7 +522,7 @@
 
 	/* Request IRQ */
 	ret = request_irq(port->irq, mpc52xx_uart_int,
-		IRQF_DISABLED | IRQF_SAMPLE_RANDOM | IRQF_SHARED,
+		IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
 		"mpc52xx_psc_uart", port);
 	if (ret)
 		return ret;