diff --git a/linkcheck/dns/resolver.py b/linkcheck/dns/resolver.py
index 728282c2..b736ca45 100644
--- a/linkcheck/dns/resolver.py
+++ b/linkcheck/dns/resolver.py
@@ -24,6 +24,7 @@ import sets
 import sys
 import os
 import time
+import encodings.idna
 
 import linkcheck.dns.exception
 import linkcheck.dns.message
@@ -517,6 +518,10 @@ class Resolver(object):
 
         if isinstance(qname, str):
             qname = linkcheck.dns.name.from_text(qname, None)
+        elif isinstance(qname, unicode):
+            # Unicode domain names: http://www.faqs.org/rfcs/rfc3490.html
+            qname = encodings.idna.ToASCII(qname)
+            qname = linkcheck.dns.name.from_text(qname, None)
         if isinstance(rdtype, str):
             rdtype = linkcheck.dns.rdatatype.from_text(rdtype)
         if isinstance(rdclass, str):