diff --git a/printer_webui/timelapse.py b/printer_webui/timelapse.py
index ba768c30..5843a76f 100644
--- a/printer_webui/timelapse.py
+++ b/printer_webui/timelapse.py
@@ -95,8 +95,8 @@ class TimedTimelapse(Timelapse):
 
 		self.timerThread = None
 
-	def onPrintjobStarted(self):
-		Timelapse.onPrintjobStarted(self)
+	def onPrintjobStarted(self, filename):
+		Timelapse.onPrintjobStarted(self, filename)
 		if self.timerThread is not None:
 			return
 
diff --git a/printer_webui/util/comm.py b/printer_webui/util/comm.py
index fc9ff30e..6308b677 100644
--- a/printer_webui/util/comm.py
+++ b/printer_webui/util/comm.py
@@ -242,7 +242,10 @@ class MachineCom(object):
 		return self._gcodePos
 	
 	def getPrintTime(self):
-		return time.time() - self._printStartTime100
+		if self._printStartTime100 == None:
+			return 0
+		else:
+			return time.time() - self._printStartTime100
 
 	def getPrintTimeRemainingEstimate(self):
 		if self._printStartTime100 == None or self.getPrintPos() < 200: