diff --git a/sql/handler.h b/sql/handler.h
index 8aaedcc69b9..f3401bdfc48 100644
--- a/sql/handler.h
+++ b/sql/handler.h
@@ -4613,7 +4613,6 @@ public:
   virtual int enable_indexes(uint mode) { return HA_ERR_WRONG_COMMAND; }
   virtual int discard_or_import_tablespace(my_bool discard)
   { return (my_errno=HA_ERR_WRONG_COMMAND); }
-  virtual void prepare_for_alter() { return; }
   virtual void drop_table(const char *name);
   virtual int create(const char *name, TABLE *form, HA_CREATE_INFO *info)=0;