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-rw-r--r--hw/ide/piix.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/ide/piix.c b/hw/ide/piix.c
index 151f206046..4e5e12935f 100644
--- a/hw/ide/piix.c
+++ b/hw/ide/piix.c
@@ -117,7 +117,7 @@ static void piix_ide_reset(DeviceState *dev)
     pci_set_word(pci_conf + PCI_COMMAND, 0x0000);
     pci_set_word(pci_conf + PCI_STATUS,
                  PCI_STATUS_DEVSEL_MEDIUM | PCI_STATUS_FAST_BACK);
-    pci_set_byte(pci_conf + 0x20, 0x01);  /* BMIBA: 20-23h */
+    pci_set_long(pci_conf + 0x20, 0x1);  /* BMIBA: 20-23h */
 }
 
 static bool pci_piix_init_bus(PCIIDEState *d, unsigned i, Error **errp)