diff -r 58817891026b -r 4fb2273c5821 whois/whois.py
--- a/whois/whois.py	Wed Aug 03 17:17:41 2016 +0000
+++ b/whois/whois.py	Wed Aug 03 21:28:29 2016 +0100
@@ -110,7 +110,7 @@
                 query_bytes = '=' + query
             else:
                 query_bytes = query
-            s.send((query_bytes + "\r\n").encode('idna'))
+            s.send((query_bytes).encode('idna') + b"\r\n")
             # recv returns bytes
             while True:
                 d = s.recv(4096)