diff --git a/plugins/manticoresearch/class/sphinx_make.py b/plugins/manticoresearch/class/sphinx_make.py
index c4805893c..aa7754644 100644
--- a/plugins/manticoresearch/class/sphinx_make.py
+++ b/plugins/manticoresearch/class/sphinx_make.py
@@ -155,6 +155,10 @@ CREATE TABLE IF NOT EXISTS `{$DB_NAME}`.`{$TABLE_NAME}` (
 
 	def makeSphinxHeader(self):
 		conf = '''
+indexer {
+  mem_limit = 1G
+}
+
 searchd
 {
 	listen = 127.0.0.1:9322