diff --git a/src/octoprint/printer/standard.py b/src/octoprint/printer/standard.py
index e758d5ee..2400a12f 100644
--- a/src/octoprint/printer/standard.py
+++ b/src/octoprint/printer/standard.py
@@ -921,8 +921,6 @@ class StateMonitor(object):
 		self._change_event = threading.Event()
 		self._state_lock = threading.Lock()
 		self._progress_lock = threading.Lock()
-		self._log_lock = threading.Lock()
-		self._message_lock = threading.Lock()
 
 		self._last_update = time.time()
 		self._worker = threading.Thread(target=self._work)