diff --git a/webui/config.php b/webui/config.php
index 66daa5f4..709492bc 100644
--- a/webui/config.php
+++ b/webui/config.php
@@ -210,7 +210,7 @@ $config['DB_DATABASE'] = 'piler';
 $config['SPHINX_DRIVER'] = 'sphinx';
 $config['SPHINX_DATABASE'] = 'sphinx';
 $config['SPHINX_HOSTNAME'] = '127.0.0.1:9306';
-$config['SPHINX_MAIN_INDEX'] = 'main1,dailydelta1,delta1';
+$config['SPHINX_MAIN_INDEX'] = 'main1,dailydelta1';
 $config['SPHINX_ATTACHMENT_INDEX'] = 'att1';
 $config['SPHINX_TAG_INDEX'] = 'tag1';
 $config['SPHINX_NOTE_INDEX'] = 'note1';