diff --git a/setup/lib/ConfigGenerator.class.php b/setup/lib/ConfigGenerator.class.php
index 373c10727e..8dc359bb7c 100644
--- a/setup/lib/ConfigGenerator.class.php
+++ b/setup/lib/ConfigGenerator.class.php
@@ -142,8 +142,8 @@ class ConfigGenerator
             $ret .= implode(', ', $retv);
         } else {
             // more than 4 values - value per line
-            $imax = count($retv)-1;
-            for ($i = 0; $i <= $imax; $i++) {
+            $imax = count($retv);
+            for ($i = 0; $i < $imax; $i++) {
                 $ret .= ($i > 0 ? ',' : '') . $crlf . '    ' . $retv[$i];
             }
         }