diff --git a/sql/sql_yacc.yy b/sql/sql_yacc.yy
index a3fe6dd7b79..7a387d539ff 100644
--- a/sql/sql_yacc.yy
+++ b/sql/sql_yacc.yy
@@ -1449,20 +1449,6 @@ slave:
            lex->sql_command = SQLCOM_SLAVE_STOP;
 	   lex->type = 0;
          };
-         |
-	SLAVE START_SYM slave_thread_opts
-         {
-	   LEX *lex=Lex;
-           lex->sql_command = SQLCOM_SLAVE_START;
-	   lex->type = 0;
-         }
-         |
-	SLAVE STOP_SYM slave_thread_opts
-         {
-	   LEX *lex=Lex;
-           lex->sql_command = SQLCOM_SLAVE_STOP;
-	   lex->type = 0;
-         };
 
 slave_thread_opts:
 	slave_thread_opt