diff --git a/dma.c b/dma.c
index 3de744fb5..6173c8018 100644
--- a/dma.c
+++ b/dma.c
@@ -365,7 +365,6 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q)
 	int frames = 0;
 	int len = SKB_WITH_OVERHEAD(q->buf_size);
 	int offset = q->buf_offset;
-	int idx;
 
 	spin_lock_bh(&q->lock);
 
@@ -384,7 +383,7 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q)
 
 		qbuf.addr = addr + offset;
 		qbuf.len = len - offset;
-		idx = mt76_dma_add_buf(dev, q, &qbuf, 1, 0, buf, NULL);
+		mt76_dma_add_buf(dev, q, &qbuf, 1, 0, buf, NULL);
 		frames++;
 	}