diff --git a/src/thread/pthread_create.c b/src/thread/pthread_create.c
index 5073ce66..6df06df5 100644
--- a/src/thread/pthread_create.c
+++ b/src/thread/pthread_create.c
@@ -236,8 +236,7 @@ int __pthread_create(pthread_t *restrict res, const pthread_attr_t *restrict att
 	sigset_t set;
 
 	if (!libc.can_do_threads) return ENOSYS;
-	self = __pthread_self(); //将进程id的值赋给主线程
-	self->pid = __syscall(SYS_getpid);
+	self = __pthread_self(); 
 	if (!libc.threaded) {
 		for (FILE *f=*__ofl_lock(); f; f=f->next)
 			init_file_lock(f);
@@ -360,7 +359,6 @@ int __pthread_create(pthread_t *restrict res, const pthread_attr_t *restrict att
 	}
 
 	if (ret >= 0) {
-		new->pid = self->pid; //新创建的线程获取进程id
 		new->next = self->next;
 		new->prev = self;
 		new->next->prev = new;
@@ -412,6 +410,6 @@ struct pthread* __pthread_list_find(pthread_t thread_id, const char* info)
 pid_t __pthread_gettid(pthread_t t)
 {
     struct pthread* thread = __pthread_list_find(t, "pthread_gettid");
-   	return thread ? thread->pid : -1;
+   	return thread ? thread->tid : -1;
 }
 weak_alias(__pthread_gettid, pthread_gettid);
\ No newline at end of file