diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 7a81fc0713442590c6643e411c77da127bc2520e..2df115790cd9e1ab6a1128603697ce5b6ed255d9 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -562,7 +562,7 @@ static int ptrace_resume(struct task_struct *child, long request,
 	}
 
 	child->exit_code = data;
-	wake_up_process(child);
+	wake_up_state(child, __TASK_TRACED);
 
 	return 0;
 }