diff --git a/hw/pci-host/pnv_phb4.c b/hw/pci-host/pnv_phb4.c
index ccbde841fc..542f9e2932 100644
--- a/hw/pci-host/pnv_phb4.c
+++ b/hw/pci-host/pnv_phb4.c
@@ -1497,7 +1497,7 @@ static void pnv_phb4_xscom_realize(PnvPHB4 *phb)
                           PHB4_PEC_PCI_STK_REGS_COUNT);
 
     /* PHB pass-through */
-    snprintf(name, sizeof(name), "xscom-pec-%d.%d-pci-phb-%d",
+    snprintf(name, sizeof(name), "xscom-pec-%d.%d-phb-%d",
              pec->chip_id, pec->index, stack_no);
     pnv_xscom_region_init(&phb->phb_regs_mr, OBJECT(phb),
                           &pnv_phb4_xscom_ops, phb, name, 0x40);