diff --git a/pypxe/http.py b/pypxe/http.py
index 1dfa483..086a646 100644
--- a/pypxe/http.py
+++ b/pypxe/http.py
@@ -83,7 +83,7 @@ def handle_request(self, connection, addr):
         response += 'Content-Length: {0}\r\n'.format(os.path.getsize(target))
         response += '\r\n'
         if method == 'HEAD':
-            connection.send(response)
+            connection.send(response.encode('ascii'))
             connection.close()
             self.logger.debug('Sending message to {0}'.format(repr(addr)))
             self.logger.debug('<--BEING MESSAGE-->')