diff --git a/src/octoprint/util/comm_acc.py b/src/octoprint/util/comm_acc.py
index dcad2339..f3b1c431 100644
--- a/src/octoprint/util/comm_acc.py
+++ b/src/octoprint/util/comm_acc.py
@@ -1758,6 +1758,7 @@ class MachineCom(object):
 
 				if(self.RX_BUFFER_SIZE - sum(self.acc_line_lengths) - len(p_command) < 5):
 					time.sleep(0.001)
+					self._log("--- wait")
 					continue
 
 				# wait until we have something in the queue