diff --git a/src/BroList.h b/src/BroList.h
index 48e9ebee04..c7637b6bd0 100644
--- a/src/BroList.h
+++ b/src/BroList.h
@@ -23,4 +23,4 @@ class Attr;
 typedef PList<Attr> attr_list;
 
 class Timer;
-typedef PList<Timer> timer_list;
+typedef PList<Timer, LIST_UNORDERED> timer_list;