diff --git a/app.py b/app.py
index 9872498..7323802 100644
--- a/app.py
+++ b/app.py
@@ -251,7 +251,7 @@ def handler(event, context):
             msg["ElastiCache:NodeReplacementScheduled"], msg["Start Time"], msg["End Time"])
 
     # Basic ASG events
-    elif "Origin" in msg and msg["Origin"] == "AutoScalingGroup":
+    elif "Event" in msg and msg["Event"] in ["autoscaling:EC2_INSTANCE_TERMINATE", "autoscaling:EC2_INSTANCE_LAUNCH"]:
         title = msg["Description"]
         body = msg["Cause"]