diff --git a/components/libc/compilers/common/extension/sys/stat.h b/components/libc/compilers/common/extension/sys/stat.h
index 2164ee512f..e4b2da764c 100644
--- a/components/libc/compilers/common/extension/sys/stat.h
+++ b/components/libc/compilers/common/extension/sys/stat.h
@@ -55,7 +55,7 @@ extern "C" {
 
 struct stat
 {
-    struct rt_device *st_dev;
+    dev_t st_dev;
     uint16_t  st_ino;
     uint16_t  st_mode;
     uint16_t  st_nlink;
diff --git a/components/net/sal/src/sal_socket.c b/components/net/sal/src/sal_socket.c
index 51aa8ce0f4..225e50ad3b 100644
--- a/components/net/sal/src/sal_socket.c
+++ b/components/net/sal/src/sal_socket.c
@@ -11,6 +11,8 @@
 
 #include <rtthread.h>
 #include <rthw.h>
+
+#include <string.h>
 #include <sys/time.h>
 #include <sys/ioctl.h>