diff --git a/install/bin/pdm-build b/.install/bin/pdm-build
similarity index 100%
rename from install/bin/pdm-build
rename to .install/bin/pdm-build
diff --git a/install/bin/pdm-launch b/.install/bin/pdm-launch
similarity index 100%
rename from install/bin/pdm-launch
rename to .install/bin/pdm-launch
diff --git a/install/bin/pdm-shell b/.install/bin/pdm-shell
similarity index 100%
rename from install/bin/pdm-shell
rename to .install/bin/pdm-shell
diff --git a/install/containers-startup.service b/.install/containers-startup.service
similarity index 100%
rename from install/containers-startup.service
rename to .install/containers-startup.service
diff --git a/install/shflags b/.install/shflags
similarity index 100%
rename from install/shflags
rename to .install/shflags
diff --git a/src/mailsrv/assets/bin/maint b/src/mailsrv/assets/bin/maint
index 0995aca..60fdfe2 100755
--- a/src/mailsrv/assets/bin/maint
+++ b/src/mailsrv/assets/bin/maint
@@ -36,7 +36,7 @@ while [[ $year -le $currentyear ]]; do
                                         BEFORE 90d \( $mailboxes \)
 
     # delete Archive/$year mailbox if it is empty
-    doveadm mailbox delete -u $user -e Archive.$year 2> /dev/null
+    doveadm mailbox delete -u $user -es Archive.$year 2> /dev/null
 
     # increment year variable
     year=$(($year+1))