diff --git a/include/libc/libc_limits.h b/include/libc/libc_limits.h
index c2129e5343..c2aa429229 100644
--- a/include/libc/libc_limits.h
+++ b/include/libc/libc_limits.h
@@ -12,8 +12,8 @@
  * 2020-09-05     Meco Manthe  first version
  */
 
-#ifndef __LIBC_LIMITS_H__
-#define __LIBC_LIMITS_H__
+#ifndef LIBC_LIMITS_H__
+#define LIBC_LIMITS_H__
 
 #include <limits.h>
 
diff --git a/include/libc/libc_stdio.h b/include/libc/libc_stdio.h
new file mode 100644
index 0000000000..19d5fd4cc5
--- /dev/null
+++ b/include/libc/libc_stdio.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/*
+ * File      : libc_stdio.h
+ *
+ * Change Logs:
+ * Date                 Author             Notes
+ * 2020-09-05     Meco Manthe  first version
+ */
+
+#ifndef LIBC_STDIO_H__
+#define LIBC_STDIO_H__
+
+#include <posix_getline.h>
+
+#endif
diff --git a/include/rtlibc.h b/include/rtlibc.h
index 73d735250f..fb8c782095 100644
--- a/include/rtlibc.h
+++ b/include/rtlibc.h
@@ -21,6 +21,7 @@
 #include "libc/libc_signal.h"
 #include "libc/libc_fdset.h"
 #include "libc/libc_limits.h"
+#include "libc/libc_stdio.h"
 
 #if defined(__CC_ARM) || defined(__CLANG_ARM) || defined(__IAR_SYSTEMS_ICC__)
 typedef signed long off_t;