diff --git a/contrib/benchmark/conf/deletes.alg b/contrib/benchmark/conf/deletes.alg
index 1b40c0f2774..652c67fe7ee 100644
--- a/contrib/benchmark/conf/deletes.alg
+++ b/contrib/benchmark/conf/deletes.alg
@@ -63,7 +63,7 @@ CloseIndex
 > 
 
 { "Deletions"
-   OpenReader  DeleteDoc   CloseReader
+   OpenReader(false)  DeleteDoc   CloseReader
 } : 4000
 
 RepSumByName