diff --git a/client/src/__locales/en.json b/client/src/__locales/en.json
index f7c572ef011..0b72521acfe 100644
--- a/client/src/__locales/en.json
+++ b/client/src/__locales/en.json
@@ -144,6 +144,8 @@
     "enforced_save_search": "Enforced safe search",
     "number_of_dns_query_to_safe_search": "The number of DNS requests to search engines for which Safe Search was enforced",
     "average_processing_time": "Average processing time",
+    "average_upstream_response_time": "Average upstream response time",
+    "response_time": "Response time",
     "processing_time": "Processing time",
     "average_processing_time_hint": "Average time in milliseconds on processing a DNS request",
     "block_domain_use_filters_and_hosts": "Block domains using filters and hosts files",
diff --git a/client/src/components/Dashboard/UpstreamAvgTime.js b/client/src/components/Dashboard/UpstreamAvgTime.js
index eb198189496..bac27931074 100644
--- a/client/src/components/Dashboard/UpstreamAvgTime.js
+++ b/client/src/components/Dashboard/UpstreamAvgTime.js
@@ -38,7 +38,7 @@ const UpstreamAvgTime = ({
     subtitle,
 }) => (
     <Card
-        title={t('average_processing_time')}
+        title={t('average_upstream_response_time')}
         subtitle={subtitle}
         bodyType="card-table"
         refresh={refreshButton}
@@ -55,7 +55,7 @@ const UpstreamAvgTime = ({
                     Cell: DomainCell,
                 },
                 {
-                    Header: <Trans>processing_time</Trans>,
+                    Header: <Trans>response_time</Trans>,
                     accessor: 'count',
                     maxWidth: 190,
                     Cell: TimeCell,
diff --git a/internal/stats/unit.go b/internal/stats/unit.go
index d5da8756a3e..84c6770b9c3 100644
--- a/internal/stats/unit.go
+++ b/internal/stats/unit.go
@@ -107,8 +107,8 @@ type unit struct {
 	// upstreamsResponses stores the number of responses from each upstream.
 	upstreamsResponses map[string]uint64
 
-	// upstreamsTimeSum stores the sum of processing time in microseconds of
-	// responses from each upstream.
+	// upstreamsTimeSum stores the sum of durations of successful queries in
+	// microseconds to each upstream.
 	upstreamsTimeSum map[string]uint64
 
 	// nResult stores the number of requests grouped by it's result.