diff --git a/nemu/src/monitor/sdb/watchpoint.c b/nemu/src/monitor/sdb/watchpoint.c
index 103809d..dd322ec 100644
--- a/nemu/src/monitor/sdb/watchpoint.c
+++ b/nemu/src/monitor/sdb/watchpoint.c
@@ -77,7 +77,7 @@ static WP* del_wp(WP** head, WP* pos) {
 void show_wp() {
   printf("No.  Expr\n");
   for (WP* tmp = head; tmp != NULL; tmp = tmp->next) {
-    printf("%3d: %12s = "FMT_WORD"\n", tmp->NO, tmp->expr, tmp->val);
+    printf("%3d: %12s -> "FMT_WORD"\n", tmp->NO, tmp->expr, tmp->val);
     tmp->hit = false;
   }
 }