diff --git a/nemu/src/monitor/sdb/sdb.c b/nemu/src/monitor/sdb/sdb.c
index 642e185..159c667 100644
--- a/nemu/src/monitor/sdb/sdb.c
+++ b/nemu/src/monitor/sdb/sdb.c
@@ -189,11 +189,10 @@ static int cmd_x(char *args) {
   word_t addr = parse_expr(arg, &res);
   if (!res)
     goto wrong_usage;
-  printf("%u, %d\n", addr, WORD_BYTES);
   for (paddr_t paddr = addr; paddr < addr + n;
        paddr += WORD_BYTES) {
     word_t value = paddr_read(addr, WORD_BYTES);
-    printf(FMT_WORD "\n", value);
+    printf(FMT_PADDR FMT_WORD "\n", paddr, value);
   }
   return 0;