diff --git a/sound/pci/als4000.c b/sound/pci/als4000.c
index 036a9ba8e1a57554025e341fcee8c50eefeebf50..0e247cb90eccb84effeaf54397fd87fc80a9630e 100644
--- a/sound/pci/als4000.c
+++ b/sound/pci/als4000.c
@@ -765,7 +765,7 @@ static void snd_als4000_configure(struct snd_sb *chip)
 		snd_als4k_gcr_write(chip, i, 0);
 	/* enable burst mode to prevent dropouts during high PCI bus usage */
 	snd_als4k_gcr_write(chip, ALS4K_GCR99_DMA_EMULATION_CTRL,
-		snd_als4k_gcr_read(chip, ALS4K_GCR99_DMA_EMULATION_CTRL) | 0x04);
+		(snd_als4k_gcr_read(chip, ALS4K_GCR99_DMA_EMULATION_CTRL) & ~0x07) | 0x04);
 	spin_unlock_irq(&chip->reg_lock);
 }