diff --git a/src/octoprint/timelapse.py b/src/octoprint/timelapse.py
index b337321a..2c3b2c82 100644
--- a/src/octoprint/timelapse.py
+++ b/src/octoprint/timelapse.py
@@ -73,7 +73,11 @@ def configureTimelapse(config=None, persist=False):
 		current.unload()
 
 	type = config["type"]
-	postRoll = config["postRoll"]
+
+	postRoll = 0
+	if "postRoll" in config:
+		postRoll = config["postRoll"]
+
 	if type is None or "off" == type:
 		current = None
 	elif "zchange" == type: