diff --git a/src/octoprint/plugins/virtual_printer/virtual.py b/src/octoprint/plugins/virtual_printer/virtual.py
index 74064db2..8da71cfa 100644
--- a/src/octoprint/plugins/virtual_printer/virtual.py
+++ b/src/octoprint/plugins/virtual_printer/virtual.py
@@ -922,7 +922,7 @@ class VirtualPrinter(object):
 				return len(data)
 
 			try:
-				written = self.incoming.put(data, timeout=self._write_timeout)
+				written = self.incoming.put(data, timeout=self._write_timeout, partial=True)
 				self._seriallog.info("<<< {}".format(data.strip()))
 				return written
 			except queue.Full: