diff --git a/src/common/weechat.c b/src/common/weechat.c
index 39bb39a82..d7515ce23 100644
--- a/src/common/weechat.c
+++ b/src/common/weechat.c
@@ -103,7 +103,7 @@ wee_log_printf (char *message, ...)
                  date_tmp->tm_hour, date_tmp->tm_min, date_tmp->tm_sec,
                  buffer);
     else
-        fprintf (log_file, "[????-??-?? ??:??:??] %s", buffer);
+        fprintf (log_file, "%s", buffer);
     fflush (log_file);
 }
 
diff --git a/weechat/src/common/weechat.c b/weechat/src/common/weechat.c
index 39bb39a82..d7515ce23 100644
--- a/weechat/src/common/weechat.c
+++ b/weechat/src/common/weechat.c
@@ -103,7 +103,7 @@ wee_log_printf (char *message, ...)
                  date_tmp->tm_hour, date_tmp->tm_min, date_tmp->tm_sec,
                  buffer);
     else
-        fprintf (log_file, "[????-??-?? ??:??:??] %s", buffer);
+        fprintf (log_file, "%s", buffer);
     fflush (log_file);
 }