diff --git a/sql/rpl_master.cc b/sql/rpl_master.cc
index 030db49d2ca..a6134cdc184 100644
--- a/sql/rpl_master.cc
+++ b/sql/rpl_master.cc
@@ -713,9 +713,9 @@ bool show_binlogs(THD* thd)
                                     Protocol::SEND_EOF))
     DBUG_RETURN(TRUE);
   
+  mysql_bin_log.lock_index();
   mysql_mutex_lock(mysql_bin_log.get_log_lock());
   DEBUG_SYNC(thd, "show_binlogs_after_lock_log_before_lock_index");
-  mysql_bin_log.lock_index();
   index_file=mysql_bin_log.get_index_file();
   
   mysql_bin_log.raw_get_current_log(&cur); // dont take mutex