diff --git a/main.py b/main.py
index 2c0086f..6d28b4e 100644
--- a/main.py
+++ b/main.py
@@ -222,6 +222,10 @@ def main():
     args = argparser.parse_args()
 
     host = client.get(args.hostname, value_in_json=True)
+    if not host:
+        print("No Such Host")
+        exit(1)
+    
     host.value["status"] = "ALIVE"
     host.value["last_heartbeat"] = datetime.utcnow().isoformat()