diff --git a/vmm/src/pci_segment.rs b/vmm/src/pci_segment.rs
index 1d1bcf88d..905364846 100644
--- a/vmm/src/pci_segment.rs
+++ b/vmm/src/pci_segment.rs
@@ -346,11 +346,10 @@ impl Aml for PciSegment {
                 &aml::AddressSpace::new_bus_number(0x0u16, 0x0u16),
                 #[cfg(target_arch = "x86_64")]
                 &aml::Io::new(0xcf8, 0xcf8, 1, 0x8),
-                #[cfg(target_arch = "aarch64")]
                 &aml::Memory32Fixed::new(
                     true,
-                    layout::PCI_MMCONFIG_START.0 as u32,
-                    layout::PCI_MMCONFIG_SIZE as u32,
+                    self.mmio_config_address as u32,
+                    PCI_MMIO_CONFIG_SIZE as u32,
                 ),
                 &aml::AddressSpace::new_memory(
                     aml::AddressSpaceCachable::NotCacheable,