diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 8de572e774dd..6d87f58d1b00 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1725,7 +1725,11 @@ void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip,
 		/* mic works only when ep packet size is set to wMaxPacketSize */
 		fp->attributes |= UAC_EP_CS_ATTR_FILL_MAX;
 		break;
-
+	case USB_ID(0x3511, 0x2b1e): /* Opencomm2 UC USB Bluetooth dongle */
+		/* mic works only when ep pitch control is not set */
+		if (stream == SNDRV_PCM_STREAM_CAPTURE)
+			fp->attributes &= ~UAC_EP_CS_ATTR_PITCH_CONTROL;
+		break;
 	}
 }