diff --git a/tangostationcontrol/tangostationcontrol/statistics/writer.py b/tangostationcontrol/tangostationcontrol/statistics/writer.py
index 1138fa52fbe48f80742dc6dd7acd31236e642276..020151b9523767aee745a2229ebe9e4935fc55b8 100644
--- a/tangostationcontrol/tangostationcontrol/statistics/writer.py
+++ b/tangostationcontrol/tangostationcontrol/statistics/writer.py
@@ -115,7 +115,7 @@ def _start_loop(receiver, writer, reconnect, filename):
     """Main loop"""
     try:
         while True:
-            _receive_packets(receiver, writer, reconnect, filename, device)
+            _receive_packets(receiver, writer, reconnect, filename)
     except KeyboardInterrupt:
         # user abort, don't complain
         logger.warning("Received keyboard interrupt. Stopping.")
@@ -123,10 +123,10 @@ def _start_loop(receiver, writer, reconnect, filename):
         writer.close_writer()
 
 
-def _receive_packets(receiver, writer, reconnect, filename, device):
+def _receive_packets(receiver, writer, reconnect, filename):
     try:
         packet = receiver.get_packet()
-        writer.next_packet(packet, device)
+        writer.next_packet(packet)
     except EOFError:
         if reconnect and not filename:
             logger.warning("Connection lost, attempting to reconnect")
diff --git a/tangostationcontrol/tangostationcontrol/statistics_writer/hdf5_writer.py b/tangostationcontrol/tangostationcontrol/statistics_writer/hdf5_writer.py
index cfc84b4cf49c2a481e19fb831b7f84cbacd2e0c0..4ac9dd9d451ae77a93b0f5f0d848d4de138cfd8c 100644
--- a/tangostationcontrol/tangostationcontrol/statistics_writer/hdf5_writer.py
+++ b/tangostationcontrol/tangostationcontrol/statistics_writer/hdf5_writer.py
@@ -270,7 +270,7 @@ class HDF5Writer(ABC):
                 finally:
                     filename = str(self.file)
                     self.file.close()
-                    logger.debug("%S closed", filename)
+                    logger.debug("%s closed", filename)
                     logger.debug(
                         "Received a total of %d statistics while running. With "
                         "%d written to disk",