diff --git a/src/machine/m_at_socket370.c b/src/machine/m_at_socket370.c
index 9bf82af38..aa2e0b189 100644
--- a/src/machine/m_at_socket370.c
+++ b/src/machine/m_at_socket370.c
@@ -106,6 +106,7 @@ machine_at_cubx_init(const machine_t *model)
     pci_init(PCI_CONFIG_TYPE_1);
     pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
     pci_register_slot(0x04, PCI_CARD_SOUTHBRIDGE, 1, 2, 3, 4);
+    pci_register_slot(0x07, PCI_CARD_IDE,         2, 3, 4, 1);
     pci_register_slot(0x09, PCI_CARD_NORMAL,      4, 1, 2, 3);
     pci_register_slot(0x0A, PCI_CARD_NORMAL,      3, 4, 1, 2);
     pci_register_slot(0x0B, PCI_CARD_NORMAL,      2, 3, 4, 1);