diff --git a/sql/item_xmlfunc.cc b/sql/item_xmlfunc.cc
index c6902878c86..0a4f501186e 100644
--- a/sql/item_xmlfunc.cc
+++ b/sql/item_xmlfunc.cc
@@ -226,6 +226,9 @@ public:
   {
     max_length= MAX_BLOB_WIDTH;
     collation.collation= pxml->charset();
+    // To avoid premature evaluation, mark all nodeset functions as non-const.
+    used_tables_cache= RAND_TABLE_BIT;
+    const_item_cache= false;
   }
   const char *func_name() const { return "nodeset"; }
 };