diff --git a/data/conf/dovecot/dovecot.conf b/data/conf/dovecot/dovecot.conf
index 69633a6b..054c40cb 100644
--- a/data/conf/dovecot/dovecot.conf
+++ b/data/conf/dovecot/dovecot.conf
@@ -174,7 +174,7 @@ namespace {
     type = shared
     separator = /
     prefix = Shared/%%u/
-    location = maildir:%%h/:INDEXPVT=~/Shared/%%u
+    location = maildir:%%h/:INDEX=~/Shared/%%u:INDEXPVT=~/Shared/%%u
     subscriptions = no
     list = children
 }