diff --git a/sql/mysqld.cc b/sql/mysqld.cc
index 1dff9c4591e..2600f346140 100644
--- a/sql/mysqld.cc
+++ b/sql/mysqld.cc
@@ -46,7 +46,6 @@
 #include "sql_servers.h"  // servers_free, servers_init
 #include "init.h"         // unireg_init
 #include "derror.h"       // init_errmessage
-#include "derror.h"       // init_errmessage
 #include "des_key_file.h" // load_des_key_file
 #include "sql_manager.h"  // stop_handle_manager, start_handle_manager
 #include "sql_expression_cache.h" // subquery_cache_miss, subquery_cache_hit