diff --git a/sickle/response.py b/sickle/response.py
index 76f6897..cb7a290 100644
--- a/sickle/response.py
+++ b/sickle/response.py
@@ -8,7 +8,7 @@
 
 from lxml import etree
 
-XMLParser = etree.XMLParser(remove_blank_text=True, recover=True, resolve_entities=False)
+XMLParser = etree.XMLParser(remove_blank_text=True, huge_tree=True, recover=True, resolve_entities=False)
 
 
 class OAIResponse(object):