diff --git a/exec.c b/exec.c
index a718d74..af1b6a2 100644
--- a/exec.c
+++ b/exec.c
@@ -3838,7 +3838,7 @@ void
cpu_physical_memory_write_rom(target_phys_addr_t addr,
         if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM &&
             (pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM &&
             !(pd & IO_MEM_ROMD)) {
-            /* do nothing */
+           cpu_abort(first_cpu, "Attempting to load malformed ROM at
address: 0x%x\n", addr);
         } else {