diff --git a/it87.c b/it87.c
index 3be865a..a5c354d 100644
--- a/it87.c
+++ b/it87.c
@@ -2644,7 +2644,7 @@ static int __init it87_find(int sioaddr, unsigned short *address,
 
 		/* Check for pwm4 */
 		reg = superio_inb(sioaddr, IT87_SIO_GPIO4_REG);
-		if (!(reg & BIT(2)))
+		if (reg & BIT(2))
 			sio_data->skip_pwm |= BIT(3);
 
 		/* Check for pwm2, fan2 */