diff --git a/roles/copr/backend/templates/lighttpd/lighttpd.conf b/roles/copr/backend/templates/lighttpd/lighttpd.conf
index 4becc3df4e..5da09c8f9e 100644
--- a/roles/copr/backend/templates/lighttpd/lighttpd.conf
+++ b/roles/copr/backend/templates/lighttpd/lighttpd.conf
@@ -304,24 +304,16 @@ server.max-keep-alive-idle = 2
 ##                                 "index.htm", "default.htm" )
 ##
 
-# Warning: This is sooo ugly.
-#
 # We only ever want to enable PHP CGI for the index generator file
 # 'dir-generator.php', nothing else - so we are sure our users can not execute
-# their own scripts.  Therefore non-conditional 'cgi.assign' config can not be
-# used.
-#
-# But to make the 'index-file.names' work correctly, we still have to set
-# 'cgi.assign' conditionally - the trick is to do this only on paths that both
-# (a) end with slash (= directories) and (b) do not contain 'dir-generator'
-# string (guard against '/some/dir-generator.php/' or alike hacks).
+# their own scripts.  Therefore only conditional 'cgi.assign' can be used.
+
 index-file.names = (
   "/dir-generator.php"
 )
-$HTTP["url"] =~ "/$" {
-  $HTTP["url"] !~ "dir-generator" {
-    cgi.assign = ( "/dir-generator.php" => "/usr/bin/php-cgi" )
-  }
+
+$HTTP["url"] == "/dir-generator.php" {
+  cgi.assign = ( "/dir-generator.php" => "/usr/bin/php-cgi"
 }
 
 ##