diff --git a/common/log.c b/common/log.c
index 5581285..564c329 100644
--- a/common/log.c
+++ b/common/log.c
@@ -61,7 +61,7 @@ seafile_log (const gchar *log_domain, GLogLevelFlags log_level,
 
     t = time(NULL);
     tm = localtime(&t);
-    len = strftime (buf, 1024, "[%x %X] ", tm);
+    len = strftime (buf, 1024, "%Y-%m-%d %H:%M:%S ", tm);
     g_return_if_fail (len < 1024);
     if (logfp) {    
         fputs (buf, logfp);