diff --git a/exec.c b/exec.c
index b1d6602..b3ebc91 100644
--- a/exec.c
+++ b/exec.c
@@ -2777,7 +2777,7 @@ void qemu_ram_set_idstr(ram_addr_t addr, const char *name,

     new_block = NULL;
     QLIST_FOREACH(block, &ram_list.blocks, next) {
-        if (block->offset == addr) {
+        if (block->offset == (addr & TARGET_PAGE_MASK)) {
             new_block = block;
             break;
         }