diff --git a/data/conf/dovecot/dovecot.conf b/data/conf/dovecot/dovecot.conf
index 820a825b..9b38aa35 100644
--- a/data/conf/dovecot/dovecot.conf
+++ b/data/conf/dovecot/dovecot.conf
@@ -175,7 +175,7 @@ namespace {
     type = shared
     separator = /
     prefix = Shared/%%u/
-    location = maildir:%%h/:INDEX=~/Shared/%%u:INDEXPVT=~/Shared/%%u
+    location = maildir:%%h/:CONTROL=~/Shared/%%u:INDEXPVT=~/Shared/%%u
     subscriptions = no
     list = children
 }