diff --git a/aiodnsresolver.py b/aiodnsresolver.py
index 2222061..0b8b312 100644
--- a/aiodnsresolver.py
+++ b/aiodnsresolver.py
@@ -605,7 +605,8 @@ def rdata_expires_at(record, expires_at):
         return \
             IPv4AddressExpiresAt(record.rdata, expires_at) if record.qtype == TYPES.A else \
             IPv6AddressExpiresAt(record.rdata, expires_at) if record.qtype == TYPES.AAAA else \
-            BytesExpiresAt(record.rdata.lower(), expires_at)
+            BytesExpiresAt(record.rdata.lower(), expires_at) if record.qtype == TYPES.CNAME else \
+            BytesExpiresAt(record.rdata, expires_at)
 
     def rdata_expires_at_min(rdatas, expires_at):
         return tuple(
diff --git a/test.py b/test.py
index dad0250..d0a4656 100644
--- a/test.py
+++ b/test.py
@@ -1688,6 +1688,8 @@ async def test_a_query_multiple(self):
     async def test_txt_query(self):
         resolve, _ = Resolver()
         res = await resolve('charemza.name', TYPES.TXT)
+        all_lowercase = all(r == r.lower() for r in res)
+        self.assertFalse(all_lowercase)
         self.assertIn(b'google', res[0])
 
     @async_test