diff --git a/app/vmselect/promql/rollup_result_cache.go b/app/vmselect/promql/rollup_result_cache.go
index 97c188887c..9ac0de4633 100644
--- a/app/vmselect/promql/rollup_result_cache.go
+++ b/app/vmselect/promql/rollup_result_cache.go
@@ -104,6 +104,9 @@ func InitRollupResultCache(cachePath string) {
 	metrics.GetOrCreateGauge(`vm_cache_size_bytes{type="promql/rollupResult"}`, func() float64 {
 		return float64(fcs().BytesSize)
 	})
+	metrics.GetOrCreateGauge(`vm_cache_size_max_bytes{type="promql/rollupResult"}`, func() float64 {
+		return float64(fcs().MaxBytesSize)
+	})
 	metrics.GetOrCreateGauge(`vm_cache_requests_total{type="promql/rollupResult"}`, func() float64 {
 		return float64(fcs().GetCalls)
 	})
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index d0e96e32c4..ed9bd7988a 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -45,6 +45,7 @@ The following tip changes can be tested by building VictoriaMetrics components f
 * BUGFIX: [MetricsQL](https://docs.victoriametrics.com/MetricsQL.html): properly merge buckets with identical `le` values, but with different string representation of these values when calculating [histogram_quantile](https://docs.victoriametrics.com/MetricsQL.html#histogram_quantile) and [histogram_share](https://docs.victoriametrics.com/MetricsQL.html#histogram_share). For example, `http_request_duration_seconds_bucket{le="5"}` and `http_requests_duration_seconds_bucket{le="5.0"}`. Such buckets may be returned from distinct targets. Thanks to @647-coder for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/3225).
 * BUGFIX: [vmalert](https://docs.victoriametrics.com/vmalert.html): change severity level for log messages about failed attempts for sending data to remote storage from `error` to `warn`. The message for about all failed send attempts remains at `error` severity level.
 * BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent.html): do not show invalid error message in Kubernetes service discovery: `cannot parse WatchEvent json response: EOF`. The invalid error message has been appeared in [v1.82.0](https://docs.victoriametrics.com/CHANGELOG.html#v1820).
+* BUGFIX: `vmselect`: expose missing metric `vm_cache_size_max_bytes{type="promql/rollupResult"}` . This metric is used for monitoring rollup cache usage with the query `vm_cache_size_bytes{type="promql/rollupResult"} / vm_cache_size_max_bytes{type="promql/rollupResult"}` in the same way as this is done for other cache types.
 
 ## [v1.82.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.82.1)