diff --git a/src/daemon/gnuserv.c b/src/daemon/gnuserv.c
index 551d2219..9f43a0ee 100644
--- a/src/daemon/gnuserv.c
+++ b/src/daemon/gnuserv.c
@@ -93,7 +93,7 @@ syslog_message (int priority, char *format, ...)
     vsnprintf (buffer, BUFSIZ-1, format, ap);
     va_end (ap);
 
-    syslog (priority, buffer);
+    syslog (priority, "%s", buffer);
 }
 
 void
@@ -108,7 +108,7 @@ syslog_io_message (int priority, char *format, ...)
     va_end (ap);
 
     snprintf (buffer2, BUFSIZ-1, "%s: %s", buffer, strerror (errno));
-    syslog (priority, buffer2);
+    syslog (priority, "%s", buffer2);
 }
 
 /*