diff --git a/mt7603/init.c b/mt7603/init.c
index f4a7a7d3..47b620d5 100644
--- a/mt7603/init.c
+++ b/mt7603/init.c
@@ -185,7 +185,7 @@ mt7603_mac_init(struct mt7603_dev *dev)
 		FIELD_PREP(MT_AGG_RETRY_CONTROL_BAR_LIMIT, 1) |
 		FIELD_PREP(MT_AGG_RETRY_CONTROL_RTS_LIMIT, 15));
 
-	mt76_rmw(dev, MT_DMA_DCR0, ~0xfffc, MT_RX_BUF_SIZE);
+	mt76_rmw(dev, MT_DMA_DCR0, ~0xfffc, 4096);
 
 	mt76_rmw(dev, MT_DMA_VCFR0, BIT(0), BIT(13));
 	mt76_rmw(dev, MT_DMA_TMCFR0, BIT(0) | BIT(1), BIT(13));