diff --git a/src/octoprint/util/comm_acc.py b/src/octoprint/util/comm_acc.py
index dfbbe9af..2646e13d 100644
--- a/src/octoprint/util/comm_acc.py
+++ b/src/octoprint/util/comm_acc.py
@@ -879,6 +879,7 @@ class MachineCom(object):
 		if returnCode == False:
 			self._log("successfully flashed new grbl version")
 			self._openSerial()
+			self._changeState(self.STATE_CONNECTING)
 		else:
 			self._log("error during flashing of new grbl version")
 			self._errorValue = "avrdude returncode: %s" % returnCode