diff --git a/app/victoria-metrics/main.go b/app/victoria-metrics/main.go
index 484e31f5ff..848d592b51 100644
--- a/app/victoria-metrics/main.go
+++ b/app/victoria-metrics/main.go
@@ -26,8 +26,8 @@ import (
 var (
 	httpListenAddr   = flag.String("httpListenAddr", ":8428", "TCP address to listen for http connections. See also -httpListenAddr.useProxyProtocol")
 	useProxyProtocol = flag.Bool("httpListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -httpListenAddr . "+
-		"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt."+
-		"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing.")
+		"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
+		"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
 	minScrapeInterval = flag.Duration("dedup.minScrapeInterval", 0, "Leave only the last sample in every time series per each discrete interval "+
 		"equal to -dedup.minScrapeInterval > 0. See https://docs.victoriametrics.com/#deduplication and https://docs.victoriametrics.com/#downsampling")
 	dryRun = flag.Bool("dryRun", false, "Whether to check only -promscrape.config and then exit. "+
diff --git a/app/vmagent/main.go b/app/vmagent/main.go
index ce6e6ebcf5..9c4a6adda1 100644
--- a/app/vmagent/main.go
+++ b/app/vmagent/main.go
@@ -46,7 +46,8 @@ var (
 		"Set this flag to empty value in order to disable listening on any port. This mode may be useful for running multiple vmagent instances on the same server. "+
 		"Note that /targets and /metrics pages aren't available if -httpListenAddr=''. See also -httpListenAddr.useProxyProtocol")
 	useProxyProtocol = flag.Bool("httpListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -httpListenAddr . "+
-		"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt")
+		"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
+		"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
 	influxListenAddr = flag.String("influxListenAddr", "", "TCP and UDP address to listen for InfluxDB line protocol data. Usually :8089 must be set. Doesn't work if empty. "+
 		"This flag isn't needed when ingesting data over HTTP - just send it to http://<vmagent>:8429/write . "+
 		"See also -influxListenAddr.useProxyProtocol")
diff --git a/app/vmalert/main.go b/app/vmalert/main.go
index 33f3e74e37..8f382a23f5 100644
--- a/app/vmalert/main.go
+++ b/app/vmalert/main.go
@@ -57,7 +57,8 @@ absolute path to all .tpl files in root.`)
 
 	httpListenAddr   = flag.String("httpListenAddr", ":8880", "Address to listen for http connections. See also -httpListenAddr.useProxyProtocol")
 	useProxyProtocol = flag.Bool("httpListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -httpListenAddr . "+
-		"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt")
+		"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
+		"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
 	evaluationInterval = flag.Duration("evaluationInterval", time.Minute, "How often to evaluate the rules")
 
 	validateTemplates   = flag.Bool("rule.validateTemplates", true, "Whether to validate annotation and label templates")
diff --git a/app/vmauth/main.go b/app/vmauth/main.go
index 5591080764..4b400c0631 100644
--- a/app/vmauth/main.go
+++ b/app/vmauth/main.go
@@ -28,8 +28,8 @@ import (
 var (
 	httpListenAddr   = flag.String("httpListenAddr", ":8427", "TCP address to listen for http connections. See also -httpListenAddr.useProxyProtocol")
 	useProxyProtocol = flag.Bool("httpListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -httpListenAddr . "+
-		"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt."+
-		"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing.")
+		"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
+		"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
 	maxIdleConnsPerBackend = flag.Int("maxIdleConnsPerBackend", 100, "The maximum number of idle connections vmauth can open per each backend host. "+
 		"See also -maxConcurrentRequests")
 	responseTimeout       = flag.Duration("responseTimeout", 5*time.Minute, "The timeout for receiving a response from backend")
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index acbb94d7b5..f11ec8b9b7 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -24,7 +24,7 @@ The following tip changes can be tested by building VictoriaMetrics components f
 * BUGFIX: [vmui](https://docs.victoriametrics.com/#vmui): stop showing `Please enter a valid Query and execute it` error message on the first load of vmui.
 * BUGFIX: [vmui](https://docs.victoriametrics.com/#vmui): properly process `Run in VMUI` button click in [VictoriaMetrics datasource plugin for Grafana](https://github.com/VictoriaMetrics/grafana-datasource).
 * BUGFIX: [vmui](https://docs.victoriametrics.com/#vmui): fix the display of the selected value for dropdowns on `Explore` page.
-* BUGFIX: [vmauth](https://docs.victoriametrics.com/vmauth.html) fixes possible panic with enabled proxy-protocol. It was introduced at [v1.87.0](https://docs.victoriametrics.com/CHANGELOG.html#v1870) when implementing [this feature](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3335).
+* BUGFIX: [vmauth](https://docs.victoriametrics.com/vmauth.html): fix `cannot serve http` panic when plain HTTP request is sent to `vmauth` configured to accept requests over [proxy protocol](https://www.haproxy.org/download/2.3/doc/proxy-protocol.txt)-encoded request (e.g. when `vmauth` runs with `-httpListenAddr.useProxyProtocol` command-line flag). The issue has been introduced at [v1.87.0](https://docs.victoriametrics.com/CHANGELOG.html#v1870) when implementing [this feature](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3335).
 
 ## [v1.88.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.88.1)