diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c
index daaa2f0575..26460d210d 100644
--- a/hw/ppc/pnv_psi.c
+++ b/hw/ppc/pnv_psi.c
@@ -738,8 +738,9 @@ static void pnv_psi_p9_mmio_write(void *opaque, hwaddr addr,
             }
         } else {
             if (!(psi->regs[reg] & PSIHB9_ESB_CI_VALID)) {
-                hwaddr addr = val & ~(PSIHB9_ESB_CI_VALID | PSIHB10_ESB_CI_64K);
-                memory_region_add_subregion(sysmem, addr,
+                hwaddr esb_addr =
+                    val & ~(PSIHB9_ESB_CI_VALID | PSIHB10_ESB_CI_64K);
+                memory_region_add_subregion(sysmem, esb_addr,
                                             &psi9->source.esb_mmio);
             }
         }