diff --git a/hw/core/loader.c b/hw/core/loader.c
index 53e0e41554..6b61f290c3 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -1045,7 +1045,8 @@ int rom_check_and_register_reset(void)
         }
         addr  = rom->addr;
         addr += rom->romsize;
-        section = memory_region_find(get_system_memory(), rom->addr, 1);
+        section = memory_region_find(rom->mr ? rom->mr : get_system_memory(),
+                                     rom->addr, 1);
         rom->isrom = int128_nz(section.size) && memory_region_is_rom(section.mr);
         memory_region_unref(section.mr);
     }