diff --git a/std/container/items.c b/std/container/items.c
index 4e76cfb..9f2191e 100644
--- a/std/container/items.c
+++ b/std/container/items.c
@@ -177,7 +177,7 @@
   }
 }
 
-private int ri_filter(<int|<string|string*>|object>* ritem, 
+private int ri_filter(<int|<string|string*>|object|mapping>* ritem, 
   string|string* file)
 {
   object ob;