diff --git a/docs/Cluster-VictoriaMetrics.md b/docs/Cluster-VictoriaMetrics.md
index defc27cdf..9adcaeea9 100644
--- a/docs/Cluster-VictoriaMetrics.md
+++ b/docs/Cluster-VictoriaMetrics.md
@@ -1562,6 +1562,8 @@ Below is the output for `/path/to/vmselect -help`:
      Log queries with execution time exceeding this value. Zero disables slow query logging. See also -search.logQueryMemoryUsage (default 5s)
   -search.maxConcurrentRequests int
      The maximum number of concurrent search requests. It shouldn't be high, since a single request can saturate all the CPU cores, while many concurrently executed requests may require high amounts of memory. See also -search.maxQueueDuration and -search.maxMemoryPerQuery (default 16)
+  -search.maxDeleteSeries int
+     The maximum number of time series, which can be deleted using /api/v1/admin/tsdb/delete_series. This option allows limiting memory usage (default 1000000)
   -search.maxExportDuration duration
      The maximum duration for /api/v1/export call (default 720h0m0s)
   -search.maxExportSeries int