diff --git a/app/vminsert/influx/request_handler.go b/app/vminsert/influx/request_handler.go
index 38826fbe9..ac2a1056e 100644
--- a/app/vminsert/influx/request_handler.go
+++ b/app/vminsert/influx/request_handler.go
@@ -2,6 +2,7 @@ package influx
 
 import (
 	"compress/gzip"
+	"flag"
 	"fmt"
 	"io"
 	"net/http"
@@ -19,6 +20,10 @@ import (
 	"github.com/VictoriaMetrics/metrics"
 )
 
+var (
+	measurementFieldSeparator = flag.String("influxMeasurementFieldSeparator", ".", "Separator for `{measurement}{separator}{field_name}` metric name when inserted via Influx line protocol")
+)
+
 var rowsInserted = tenantmetrics.NewCounterMap(`vm_rows_inserted_total{type="influx"}`)
 
 // InsertHandler processes remote write for influx line protocol.
@@ -89,7 +94,7 @@ func (ctx *pushCtx) InsertRows(at *auth.Token, db string) error {
 		ic.MetricNameBuf = storage.MarshalMetricNameRaw(ic.MetricNameBuf[:0], at.AccountID, at.ProjectID, ic.Labels)
 		metricNameBufLen := len(ic.MetricNameBuf)
 		ctx.metricGroupBuf = append(ctx.metricGroupBuf[:0], r.Measurement...)
-		ctx.metricGroupBuf = append(ctx.metricGroupBuf, '.')
+		ctx.metricGroupBuf = append(ctx.metricGroupBuf, *measurementFieldSeparator...)
 		metricGroupPrefixLen := len(ctx.metricGroupBuf)
 		ic.AddLabel("", "placeholder")
 		placeholderLabel := &ic.Labels[len(ic.Labels)-1]