diff --git a/southbridge/amd/cs5536/cs5536.c b/southbridge/amd/cs5536/cs5536.c
index 6717cdd483..f19a104686 100644
--- a/southbridge/amd/cs5536/cs5536.c
+++ b/southbridge/amd/cs5536/cs5536.c
@@ -602,7 +602,7 @@ static void ide_init(struct device *dev)
 	// NOTE: Only 32-bit writes to the data buffer are allowed when PWB is set
 	ide_cfg = pci_read_config32(dev, IDE_CFG);
 	ide_cfg |= CHANEN | PWB;
-	pci_write_config8(dev, IDE_CFG, ide_cfg);
+	pci_write_config32(dev, IDE_CFG, ide_cfg);
 }