diff --git a/nbase/nbase_winunix.h b/nbase/nbase_winunix.h
index ce456fac1..f5751c24a 100644
--- a/nbase/nbase_winunix.h
+++ b/nbase/nbase_winunix.h
@@ -191,6 +191,14 @@ Nbase that legitimately use ENOENT for file operations.
 
 typedef unsigned short u_short_t;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 int win_stdin_start_thread(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* NBASE_WINUNIX_H */