diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 2b3de669618..f3b342b3fad 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -991,7 +991,7 @@ JOIN::optimize()
       }
     }
     
-    if (select_lex->master_unit()->uncacheable || thd->lex->describe)
+    if (select_lex->master_unit()->uncacheable)
     {
       if (!(tmp_join= (JOIN*)thd->alloc(sizeof(JOIN))))
 	DBUG_RETURN(-1);