diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 08873d2afe4d..ffd922327ae4 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -2883,7 +2883,7 @@ static int snd_djm_controls_put(struct snd_kcontrol *kctl, struct snd_ctl_elem_v
 	u8 group = (private_value & SND_DJM_GROUP_MASK) >> SND_DJM_GROUP_SHIFT;
 	u16 value = elem->value.enumerated.item[0];
 
-	kctl->private_value = ((device << SND_DJM_DEVICE_SHIFT) |
+	kctl->private_value = (((unsigned long)device << SND_DJM_DEVICE_SHIFT) |
 			      (group << SND_DJM_GROUP_SHIFT) |
 			      value);
 
@@ -2921,7 +2921,7 @@ static int snd_djm_controls_create(struct usb_mixer_interface *mixer,
 		value = device->controls[i].default_value;
 		knew.name = device->controls[i].name;
 		knew.private_value = (
-			(device_idx << SND_DJM_DEVICE_SHIFT) |
+			((unsigned long)device_idx << SND_DJM_DEVICE_SHIFT) |
 			(i << SND_DJM_GROUP_SHIFT) |
 			value);
 		err = snd_djm_controls_update(mixer, device_idx, i, value);