diff --git a/nemu/src/monitor/sdb/sdb.c b/nemu/src/monitor/sdb/sdb.c
index 4f6ec5b..362e344 100644
--- a/nemu/src/monitor/sdb/sdb.c
+++ b/nemu/src/monitor/sdb/sdb.c
@@ -191,6 +191,7 @@ static int cmd_x(char *args) {
   word_t n = parse_uint(arg, &res);
   if (!res)
     goto wrong_usage;
+  printf("%u", n);
   arg = strtok(NULL, " ");
   word_t addr = parse_expr(arg, &res);
   if (!res)