diff --git a/pkg/models/datasource.go b/pkg/models/datasource.go
index ec63eccb5c0..0a1bf732e39 100644
--- a/pkg/models/datasource.go
+++ b/pkg/models/datasource.go
@@ -27,6 +27,7 @@ const (
 	DS_CLOUD_MONITORING = "stackdriver"
 	DS_AZURE_MONITOR    = "grafana-azure-monitor-datasource"
 	DS_LOKI             = "loki"
+	DS_ES_OPEN_DISTRO   = "grafana-es-open-distro-datasource"
 )
 
 var (
diff --git a/pkg/models/sigv4.go b/pkg/models/sigv4.go
index 352c5fd702d..dd8fb5c838a 100644
--- a/pkg/models/sigv4.go
+++ b/pkg/models/sigv4.go
@@ -148,7 +148,7 @@ func replaceBody(req *http.Request) ([]byte, error) {
 
 func awsServiceNamespace(dsType string) string {
 	switch dsType {
-	case DS_ES:
+	case DS_ES, DS_ES_OPEN_DISTRO:
 		return "es"
 	case DS_PROMETHEUS:
 		return "aps"