Index: openacs-4/packages/acs-admin/tcl/apm-admin-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-admin/tcl/apm-admin-procs.tcl,v
diff -u -r1.20.2.10 -r1.20.2.11
--- openacs-4/packages/acs-admin/tcl/apm-admin-procs.tcl	27 Mar 2017 10:56:21 -0000	1.20.2.10
+++ openacs-4/packages/acs-admin/tcl/apm-admin-procs.tcl	28 Mar 2017 06:46:51 -0000	1.20.2.11
@@ -632,9 +632,9 @@
         file delete -force -- $repository_bak
     }
     if { [file exists $repository_dirname] } {
-        file rename $repository_dirname $repository_bak
+        file rename -- $repository_dirname $repository_bak
     }
-    file rename $work_repository_dirname  $repository_dirname
+    file rename -- $work_repository_dirname  $repository_dirname
 
     ns_log Debug "Repository: DONE"