diff --git a/plugin/api/insight/map_label.go b/plugin/api/insight/map_label.go
index 0209a30c..15b84208 100644
--- a/plugin/api/insight/map_label.go
+++ b/plugin/api/insight/map_label.go
@@ -79,7 +79,8 @@ func (h *InsightAPI) renderMapLabelTemplate(w http.ResponseWriter, req *http.Req
 		label, err := common2.ExecuteTemplate(tpl, ctx.Value)
 		if err != nil {
 			log.Error(err)
-			continue
+			h.WriteError(w, err.Error(), http.StatusInternalServerError)
+			return
 		}
 		resultLabels[ctx.Key] = string(label)
 	}