diff --git a/pkg/services/ngalert/eval/eval.go b/pkg/services/ngalert/eval/eval.go
index c7725c0a396..5dcbbb030f6 100644
--- a/pkg/services/ngalert/eval/eval.go
+++ b/pkg/services/ngalert/eval/eval.go
@@ -226,6 +226,7 @@ func buildDatasourceHeaders(ctx EvaluationContext) map[string]string {
 	key, ok := models.RuleKeyFromContext(ctx.Ctx)
 	if ok {
 		headers["X-Rule-Uid"] = key.UID
+		headers["X-Grafana-Org-Id"] = strconv.FormatInt(key.OrgID, 10)
 	}
 
 	return headers