diff --git a/NEWS b/NEWS
index 8ce43f1cc..5d1fcda9f 100644
--- a/NEWS
+++ b/NEWS
@@ -14,6 +14,7 @@ Bug fixes
  - [web] hide fab button when printing (#4038)
  - [web] SOGoCalendarWeekdays must now be defined before saving preferences
  - [web] fixed CAS session timeout handling during XHR requests (#1456)
+ - [web] exposed default value of SOGoMailAutoSave (#4053)
 
 3.2.7 (2017-02-14)
 ------------------
diff --git a/UI/PreferencesUI/UIxJSONPreferences.m b/UI/PreferencesUI/UIxJSONPreferences.m
index 97ed67c0e..ae26ff895 100644
--- a/UI/PreferencesUI/UIxJSONPreferences.m
+++ b/UI/PreferencesUI/UIxJSONPreferences.m
@@ -283,6 +283,9 @@ static SoProduct *preferencesProduct = nil;
   if (![[defaults source] objectForKey: @"SOGoMailDisplayRemoteInlineImages"])
     [[defaults source] setObject: [defaults mailDisplayRemoteInlineImages] forKey: @"SOGoMailDisplayRemoteInlineImages"];
 
+  if (![[defaults source] objectForKey: @"SOGoMailAutoSave"])
+    [[defaults source] setObject: [defaults mailAutoSave] forKey: @"SOGoMailAutoSave"];
+
   // Populate default mail labels, based on the user's preferred language
   if (![[defaults source] objectForKey: @"SOGoMailLabelsColors"])
     {