--- completions/vpnc	2017-09-22 07:25:24.000000000 +0200
+++ completions/vpnc	2018-03-27 12:54:07.000000000 +0200
@@ -68,7 +68,7 @@
     else
         # config name, /etc/vpnc/<name>.conf
         local IFS=$' \t\n' reset=$(shopt -p nullglob); shopt -s nullglob
-        local -a configs=( /etc/vpnc/*.conf )
+        local -a configs=( @@PREFIX@@/etc/vpnc/*.conf )
         configs=( "${configs[@]##*/}" )
         configs=( "${configs[@]%.conf}" )
         $reset