diff --git a/include/hw/pci-host/pnv_phb4.h b/include/hw/pci-host/pnv_phb4.h
index 1f3237c9d5..17aef08f91 100644
--- a/include/hw/pci-host/pnv_phb4.h
+++ b/include/hw/pci-host/pnv_phb4.h
@@ -173,8 +173,6 @@ struct PnvPhb4PecState {
     uint32_t index;
     uint32_t chip_id;
 
-    MemoryRegion *system_memory;
-
     /* Nest registers, excuding per-stack */
 #define PHB4_PEC_NEST_REGS_COUNT    0xf
     uint64_t nest_regs[PHB4_PEC_NEST_REGS_COUNT];