diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c
index 883264ada6b0e01e05dac7ac518d0f7771331901..f42e7c094a3feff7a144a5b4386a51afc4f58f32 100644
--- a/src/qemu/qemu_domain_address.c
+++ b/src/qemu/qemu_domain_address.c
@@ -1382,7 +1382,7 @@ qemuDomainAddressFindNewBusNr(virDomainDefPtr def)
  *    bus and busNr of the next highest bus for the guest to assign a
  *    unique bus number to each PCI bus that is a child of this
  *    bus. Each PCI controller. On top of this, the pxb device (which
- *    implements the pci-extender-bus) includes a pci-bridge within
+ *    implements the pci-expander-bus) includes a pci-bridge within
  *    it, and that bridge also uses one bus number (so each pxb device
  *    requires at least 2 bus numbers).
  *