1 files changed, 1 insertions, 1 deletions
diff --git a/util/messages.c b/util/messages.c
index a43d962..b5c2dba 100644
--- a/util/messages.c
+++ b/util/messages.c
@@ -225,7 +225,7 @@ message_log_stderr(size_t len UNUSED, const char *fmt, va_list args, int err)
  * This needs further attention on Windows.  For example, it currently doesn't
  * log the errno information.
  */
-static void
+static void __attribute__((__format__(printf, 3, 0)))
 message_log_syslog(int pri, size_t len, const char *fmt, va_list args, int err)
 {
     char *buffer;