diff --git a/enzevalos_iphone/StudySettings.swift b/enzevalos_iphone/StudySettings.swift
index 0256810b081847672f8c1946d020c4fcdc35a65d..dd0c417f5df6667d6692a54b686d6b2fddac46d7 100644
--- a/enzevalos_iphone/StudySettings.swift
+++ b/enzevalos_iphone/StudySettings.swift
@@ -53,6 +53,7 @@ class StudySettings {
     static var securityIndicator: SecurityIndicator = SecurityIndicator.load() as! SecurityIndicator
     static var invitationsmode: Inviation = Inviation.load() as! Inviation
     
+    /// whether to show a normal inbox (false) or a (currently slightly buggy) categorized interface (true)
     static var showCategorizedInterface = false
     static var useAvatars = true