diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index f45f02be4c..c063d01f8d 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -284,17 +284,30 @@ static void pnv_dt_icp(PnvChip *chip, void *fdt, uint32_t pir,
 static PnvPhb4PecState *pnv_phb4_get_pec(PnvChip *chip, PnvPHB4 *phb,
                                          Error **errp)
 {
-    Pnv9Chip *chip9 = PNV9_CHIP(chip);
+    PnvPHB *phb_base = phb->phb_base;
+    PnvPhb4PecState *pecs = NULL;
     int chip_id = phb->chip_id;
     int index = phb->phb_id;
     int i, j;
 
+    if (phb_base->version == 4) {
+        Pnv9Chip *chip9 = PNV9_CHIP(chip);
+
+        pecs = chip9->pecs;
+    } else if (phb_base->version == 5) {
+        Pnv10Chip *chip10 = PNV10_CHIP(chip);
+
+        pecs = chip10->pecs;
+    } else {
+        g_assert_not_reached();
+    }
+
     for (i = 0; i < chip->num_pecs; i++) {
         /*
          * For each PEC, check the amount of phbs it supports
          * and see if the given phb4 index matches an index.
          */
-        PnvPhb4PecState *pec = &chip9->pecs[i];
+        PnvPhb4PecState *pec = &pecs[i];
 
         for (j = 0; j < pec->num_phbs; j++) {
             if (index == pnv_phb4_pec_get_phb_id(pec, j)) {