diff --git a/os/various/cpp_wrappers/syscalls_cpp.cpp b/os/various/cpp_wrappers/syscalls_cpp.cpp
index d7d6d92a..f4bb0f70 100755
--- a/os/various/cpp_wrappers/syscalls_cpp.cpp
+++ b/os/various/cpp_wrappers/syscalls_cpp.cpp
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <errno.h>
-
+#include <unistd.h>
+#include <sys/types.h>
 #include "osal.h"
 
 #include "syscalls_cpp.hpp"