diff --git a/lib/contents.coffee b/lib/contents.coffee
index d71a38e..7011b65 100644
--- a/lib/contents.coffee
+++ b/lib/contents.coffee
@@ -44,7 +44,7 @@ class Contents.Item
     !@decrypted
 
   securityLevel: ->
-    @detail().openContents.securityLevel || 'SL5'
+    @detail().openContents?.securityLevel || 'SL5'
 
   detail: ->
     return @_detail if @_detail