diff --git a/rules/alerting.go b/rules/alerting.go
index 1a1f4b796..235e11d47 100644
--- a/rules/alerting.go
+++ b/rules/alerting.go
@@ -205,8 +205,8 @@ func (r *AlertingRule) Query() promql.Expr {
 	return r.vector
 }
 
-// Duration returns the hold duration of the alerting rule.
-func (r *AlertingRule) Duration() time.Duration {
+// HoldDuration returns the hold duration of the alerting rule.
+func (r *AlertingRule) HoldDuration() time.Duration {
 	return r.holdDuration
 }
 
@@ -547,8 +547,3 @@ func (r *AlertingRule) HTMLSnippet(pathPrefix string) html_template.HTML {
 	}
 	return html_template.HTML(byt)
 }
-
-// HoldDuration returns the holdDuration of the alerting rule.
-func (r *AlertingRule) HoldDuration() time.Duration {
-	return r.holdDuration
-}
diff --git a/web/api/v1/api.go b/web/api/v1/api.go
index 9918fefc2..54eb2d570 100644
--- a/web/api/v1/api.go
+++ b/web/api/v1/api.go
@@ -972,7 +972,7 @@ func (api *API) rules(r *http.Request) apiFuncResult {
 					State:          rule.State().String(),
 					Name:           rule.Name(),
 					Query:          rule.Query().String(),
-					Duration:       rule.Duration().Seconds(),
+					Duration:       rule.HoldDuration().Seconds(),
 					Labels:         rule.Labels(),
 					Annotations:    rule.Annotations(),
 					Alerts:         rulesAlertsToAPIAlerts(rule.ActiveAlerts()),