diff --git a/cmd/alertmanager/main.go b/cmd/alertmanager/main.go
index 876996f9e..3d9add04b 100644
--- a/cmd/alertmanager/main.go
+++ b/cmd/alertmanager/main.go
@@ -347,7 +347,9 @@ func run() int {
 	defer alerts.Close()
 
 	var disp *dispatch.Dispatcher
-	defer disp.Stop()
+	defer func() {
+		disp.Stop()
+	}()
 
 	groupFn := func(routeFilter func(*dispatch.Route) bool, alertFilter func(*types.Alert, time.Time) bool) (dispatch.AlertGroups, map[model.Fingerprint][]string) {
 		return disp.Groups(routeFilter, alertFilter)