diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 2a050ff4608b..4c6d716e5fde 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -2389,6 +2389,7 @@ static const struct file_operations pwm_cdev_fileops = {
 	.release = pwm_cdev_release,
 	.owner = THIS_MODULE,
 	.unlocked_ioctl = pwm_cdev_ioctl,
+	.compat_ioctl = compat_ptr_ioctl,
 };
 
 static dev_t pwm_devt;