diff --git a/components/libc/pthreads/pthread.c b/components/libc/pthreads/pthread.c
old mode 100755
new mode 100644
index 5d3bc0796a7c8005d2894e396c63539f92936fdf..19a511b45b31320d2096f272242b1f3b2c64466c
--- a/components/libc/pthreads/pthread.c
+++ b/components/libc/pthreads/pthread.c
@@ -277,7 +277,7 @@ int pthread_create(pthread_t            *pid,
 
     /* set pthread cleanup function and ptd data */
     ptd->tid->cleanup = _pthread_cleanup;
-    ptd->tid->user_data = (rt_uint32_t)ptd;
+    ptd->tid->user_data = (rt_ubase_t)ptd;
 
     /* start thread */
     if (rt_thread_startup(ptd->tid) == RT_EOK)
diff --git a/include/rtdef.h b/include/rtdef.h
index f2b546f75e5f770ef500aa40121bf003a3e00052..b391ff76851290efe98739c07100bb97e090a1d9 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -623,7 +623,7 @@ struct rt_thread
     void        *lwp;
 #endif
 
-    rt_uint32_t user_data;                             /**< private user data beyond this thread */
+    rt_ubase_t user_data;                             /**< private user data beyond this thread */
 };
 typedef struct rt_thread *rt_thread_t;