diff --git a/log/log.c b/log/log.c
index 71433d5..79ff35c 100644
--- a/log/log.c
+++ b/log/log.c
@@ -588,7 +588,7 @@ void log_write_direct(int log_id, const char *fmt, ...)
     now = time(NULL);
 
     _lock_logger();
-    vsnprintf(line, LOG_MAXLINELEN, fmt, ap);
+    __vsnprintf(line, LOG_MAXLINELEN, fmt, ap);
     if (_log_open (log_id))
     {
         int len = create_log_entry (log_id, "", line);
diff --git a/log/log.h b/log/log.h
index 3733efa..a7718f0 100644
--- a/log/log.h
+++ b/log/log.h
@@ -39,6 +39,6 @@ void log_shutdown(void);
 
 void log_write(int log_id, unsigned priority, const char *cat, const char *func, 
         const char *fmt, ...);
-void log_write_direct(int log_id, const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
+void log_write_direct(int log_id, const char *fmt, ...);
 
 #endif  /* __LOG_H__ */