diff --git a/etc/sphinx.conf b/etc/sphinx.conf
index a5ceddf..d887fd8 100644
--- a/etc/sphinx.conf
+++ b/etc/sphinx.conf
@@ -2,14 +2,17 @@
 # Minimal Sphinx configuration sample (clean, simple, functional)
 #
 
-source main
+source base
 {
    type = mysql
    sql_host = localhost
    sql_db = piler
    sql_user = piler
    sql_pass = piler
+}
 
+source main : base
+{
    sql_query_pre = SET NAMES utf8
    sql_query = SELECT id, `from`, `to`, `fromdomain`, `todomain`, `subject`, `arrived`, `sent`, `body`, `size`, `direction`, `folder`, `attachments`, `attachment_types` FROM sph_index \
         WHERE id<=( SELECT max_doc_id FROM sph_counter WHERE counter_id=1 )
@@ -24,14 +27,8 @@
 }
 
 
-source delta
+source delta : base
 {
-   type = mysql
-   sql_host = localhost
-   sql_db = piler
-   sql_user = piler
-   sql_pass = piler
-
    sql_query_pre = SET NAMES utf8
    sql_query_pre  = REPLACE INTO sph_counter SELECT 1, MAX(id) FROM sph_index
    sql_query_post_index  = DELETE FROM sph_index WHERE id<=(SELECT max_doc_id FROM sph_counter WHERE counter_id=1)
@@ -50,14 +47,8 @@
 }
 
 
-source tag
+source tag : base
 {
-   type = mysql
-   sql_host = localhost
-   sql_db = piler
-   sql_user = piler
-   sql_pass = piler
-
    sql_query_pre = SET NAMES utf8
    sql_query  = SELECT `_id`, `id`, `uid`, `tag` FROM `tag`
 
@@ -67,14 +58,8 @@
 }
 
 
-source note
+source note : base
 {
-   type = mysql
-   sql_host = localhost
-   sql_db = piler
-   sql_user = piler
-   sql_pass = piler
-
    sql_query_pre = SET NAMES utf8
    sql_query  = SELECT `_id`, `id`, `uid`, `note` FROM `note`
 
@@ -155,5 +140,5 @@
 	preopen_indexes		= 1
 	unlink_old		= 1
 	workers			= threads # for RT to work
-        compat_sphinxql_magics  = 0
+	compat_sphinxql_magics  = 0
 }