diff --git a/main.py b/main.py
index 63681c0..788b9fb 100755
--- a/main.py
+++ b/main.py
@@ -28,7 +28,7 @@ config_schema = Schema({
     Optional('logging', default={'level': ':WARNING,ovhdns:INFO'}): {
         Optional('level', default=':WARNING,ovhdns:INFO'): Use(str),
     },
-    Optional('ttl', default=60): Use(lambda i: int(i) if i is not None else None),
+    Optional('ttl', default=60): Use(lambda i: int(i) if i is not None else 60),
 })
 
 def get_opendns_ips():