diff --git a/src/machine/m_at_386dx_486.c b/src/machine/m_at_386dx_486.c
index 572cebc2e..7f285af65 100644
--- a/src/machine/m_at_386dx_486.c
+++ b/src/machine/m_at_386dx_486.c
@@ -1248,7 +1248,7 @@ machine_at_alfredo_init(const machine_t *model)
     if (bios_only || !ret)
         return ret;
 
-    machine_at_common_init(model);
+    machine_at_common_init_ex(model, 2);
 
     device_add(&amstrad_megapc_nvr_device);
     device_add(&ide_pci_device);
diff --git a/src/machine/m_at_socket4.c b/src/machine/m_at_socket4.c
index 072d52e01..0d78c6de3 100644
--- a/src/machine/m_at_socket4.c
+++ b/src/machine/m_at_socket4.c
@@ -44,7 +44,7 @@
 void
 machine_at_premiere_common_init(const machine_t *model, int pci_switch)
 {
-    machine_at_common_init_ex(model);
+    machine_at_common_init_ex(model, 2);
 
     device_add(&amstrad_megapc_nvr_device);
     device_add(&ide_pci_device);