diff --git a/feed_dns.py b/feed_dns.py
index 8dea41d..439986a 100755
--- a/feed_dns.py
+++ b/feed_dns.py
@@ -184,8 +184,8 @@ class MassDnsParser(Parser):
                         select,
                         write,
                         timestamp,
-                        split[0][:name_offset],
-                        split[2][:value_offset],
+                        split[0][:name_offset].lower(),
+                        split[2][:value_offset].lower(),
                     )
                     self.register(record)
                     self.prof.enter_step('parse_massdns')