Index: library/lib/nx-zip.tcl
===================================================================
diff -u -r6e8143f9a41fb08de53db6332271e3685620ebbf -r5f294355a07a9b47efeb9e7e4f8e36462ad3fb8b
--- library/lib/nx-zip.tcl	(.../nx-zip.tcl)	(revision 6e8143f9a41fb08de53db6332271e3685620ebbf)
+++ library/lib/nx-zip.tcl	(.../nx-zip.tcl)	(revision 5f294355a07a9b47efeb9e7e4f8e36462ad3fb8b)
@@ -67,7 +67,7 @@
     #
     :public method ns_returnZipFile {zipFileName} {
       ns_write "HTTP/1.0 200 OK\r\nContent-type: application/zip\r\n"
-      ns_write "Content-Disposition: attachment;filename=$zipFileName\r\n"
+      ns_write "Content-Disposition: attachment;filename=\"$zipFileName\"\r\n"
       ns_write "\r\n"
       set channel [ns_conn channel]
       fconfigure $channel -translation binary