diff --git a/Kernel/PCI/MMIOAccess.cpp b/Kernel/PCI/MMIOAccess.cpp
index 03b5b39dd9..fbb692eb00 100644
--- a/Kernel/PCI/MMIOAccess.cpp
+++ b/Kernel/PCI/MMIOAccess.cpp
@@ -122,8 +122,8 @@ MMIOAccess::MMIOAccess(PhysicalAddress p_mcfg)
     InterruptDisabler disabler;
 
     enumerate_hardware([&](const Address& address, ID id) {
-        m_physical_ids.append({ address, id, get_capabilities(address) });
         m_mapped_device_regions.append(make<DeviceConfigurationSpaceMapping>(address, m_segments.get(address.seg()).value()));
+        m_physical_ids.append({ address, id, get_capabilities(address) });
 #ifdef PCI_DEBUG
         dbg() << "PCI: Mapping device @ pci (" << String::format("%w", address.seg()) << ":" << String::format("%b", address.bus()) << ":" << String::format("%b", address.slot()) << "." << String::format("%b", address.function()) << ")"
               << " " << m_mapped_device_regions.last().vaddr() << " " << m_mapped_device_regions.last().paddr();