diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c
index e4978f6367aa..af4772d86086 100644
--- a/drivers/net/dsa/mv88e6xxx/port.c
+++ b/drivers/net/dsa/mv88e6xxx/port.c
@@ -213,7 +213,7 @@ static int mv88e6xxx_port_set_speed(struct mv88e6xxx_chip *chip, int port,
 		reg &= ~PORT_PCS_CTRL_ALTSPEED;
 	if (force_bit) {
 		reg &= ~PORT_PCS_CTRL_FORCE_SPEED;
-		if (speed)
+		if (speed != SPEED_UNFORCED)
 			ctrl |= PORT_PCS_CTRL_FORCE_SPEED;
 	}
 	reg |= ctrl;