1 files changed, 10 insertions, 2 deletions
diff --git a/sql/item_xmlfunc.h b/sql/item_xmlfunc.h
index 278c98baf7c..dadbb5ccf42 100644
--- a/sql/item_xmlfunc.h
+++ b/sql/item_xmlfunc.h
@@ -28,8 +28,16 @@ protected:
   String tmp_value, pxml;
   Item *nodeset_func;
 public:
-  Item_xml_str_func(Item *a, Item *b): Item_str_func(a,b) {}
-  Item_xml_str_func(Item *a, Item *b, Item *c): Item_str_func(a,b,c) {}
+  Item_xml_str_func(Item *a, Item *b): 
+    Item_str_func(a,b) 
+  {
+    maybe_null= TRUE;
+  }
+  Item_xml_str_func(Item *a, Item *b, Item *c): 
+    Item_str_func(a,b,c) 
+  {
+    maybe_null= TRUE;
+  }
   void fix_length_and_dec();
   String *parse_xml(String *raw_xml, String *parsed_xml_buf);
 };