Index: openacs-4/packages/xowiki/www/xinha/attach-file.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/www/xinha/attach-file.tcl,v
diff -u -r1.5.2.3 -r1.5.2.4
--- openacs-4/packages/xowiki/www/xinha/attach-file.tcl	28 Nov 2016 17:04:17 -0000	1.5.2.3
+++ openacs-4/packages/xowiki/www/xinha/attach-file.tcl	27 Mar 2017 10:37:42 -0000	1.5.2.4
@@ -101,7 +101,7 @@
                     -creation_ip [ad_conn peeraddr] \
                     -package_id [ad_conn package_id]
             }
-            file delete $upload_tmpfile
+            file delete -- $upload_tmpfile
             permission::grant \
                 -object_id $item_id \
                 -party_id $user_id \