diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index f8ea8cf694c6cb..3de56ca2801713 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1792,7 +1792,13 @@ static int __unregister_kprobe_top(struct kprobe *p)
 				if ((list_p != p) && (list_p->post_handler))
 					goto noclean;
 			}
-			ap->post_handler = NULL;
+			/*
+			 * For the kprobe-on-ftrace case, we keep the
+			 * post_handler setting to identify this aggrprobe
+			 * armed with kprobe_ipmodify_ops.
+			 */
+			if (!kprobe_ftrace(ap))
+				ap->post_handler = NULL;
 		}
 noclean:
 		/*