diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 794cd33be68b..0b75a45ad2e8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -162,8 +162,8 @@ enum mt76_dfs_state {
 
 struct mt76_queue_buf {
 	dma_addr_t addr;
-	u16 len;
-	bool skip_unmap;
+	u16 len:15,
+	    skip_unmap:1;
 };
 
 struct mt76_tx_info {