diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3e5caea46a2..6c30a711690 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -61,6 +61,7 @@
 * [ENHANCEMENT] Blocksconvert – Builder: retry block upload before giving up. #3245
 * [ENHANCEMENT] Hash ring: added instance registered timestamp to the ring. #3248
 * [ENHANCEMENT] Reduce tail latency by smoothing out spikes in rate of chunk flush operations. #3191
+* [ENHANCEMENT] User Cortex as User Agent in http requests issued by Configs DB client. #3264
 * [ENHANCEMENT] Experimental Ruler API: Fetch rule groups from object storage in parallel. #3218
 * [ENHANCEMENT] Chunks GCS object storage client uses the `fields` selector to limit the payload size when listing objects in the bucket. #3218
 * [BUGFIX] No-longer-needed ingester operations for queries triggered by queriers and rulers are now canceled. #3178
diff --git a/pkg/configs/client/client.go b/pkg/configs/client/client.go
index da0c1209f17..cc57ad82f6d 100644
--- a/pkg/configs/client/client.go
+++ b/pkg/configs/client/client.go
@@ -14,6 +14,7 @@ import (
 	"github.com/go-kit/kit/log/level"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
+	"github.com/prometheus/common/version"
 	"github.com/weaveworks/common/instrument"
 
 	"github.com/cortexproject/cortex/pkg/configs/userconfig"
@@ -140,6 +141,8 @@ func doRequest(endpoint string, timeout time.Duration, tlsConfig *tls.Config, si
 		client.Transport = &http.Transport{TLSClientConfig: tlsConfig}
 	}
 
+	req.Header.Set("User-Agent", fmt.Sprintf("Cortex/%s", version.Version))
+
 	resp, err := client.Do(req)
 	if err != nil {
 		return nil, err