diff --git a/rabbitmq/files/heka.toml b/rabbitmq/files/heka.toml
index 9c219c8..ad90556 100644
--- a/rabbitmq/files/heka.toml
+++ b/rabbitmq/files/heka.toml
@@ -5,6 +5,7 @@
 file_match = 'rabbit@.+\.log\.?(?P<Index>\d+)?(.gz)?'
 priority = ["^Index"]
 decoder = "rabbitmq"
+oldest_duration = "168h"
 
 [rabbitmq]
 type = "SandboxDecoder"