Index: openacs-4/packages/assessment/tcl/as-qti-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/assessment/tcl/as-qti-procs.tcl,v
diff -u -N -r1.49.2.1 -r1.49.2.2
--- openacs-4/packages/assessment/tcl/as-qti-procs.tcl	10 Sep 2015 08:27:59 -0000	1.49.2.1
+++ openacs-4/packages/assessment/tcl/as-qti-procs.tcl	27 Mar 2017 10:47:03 -0000	1.49.2.2
@@ -30,7 +30,7 @@
 	}
 
 	# Delete the temporary directory
-	file delete -force $tmpdirectory
+	file delete -force -- $tmpdirectory
     } else {
         set url_assessment [as::qti::register_xml -xml_file $tmp_dir -community_id $community_id]
     }
@@ -63,7 +63,7 @@
         }
 
         # Delete the temporary directory
-        file delete -force $tmpdirectory
+        file delete -force -- $tmpdirectory
     } else {
         set assessment_id [as::qti::register_xml_object_id -xml_file $tmp_dir -community_id $community_id -prop $prop]
     }