diff --git a/sitemap.go b/sitemap.go
index e4d3457..4dfd953 100644
--- a/sitemap.go
+++ b/sitemap.go
@@ -1,109 +1,109 @@
 /*
  * Copyright © 2018-2019 A Bunch Tell LLC.
  *
  * This file is part of WriteFreely.
  *
  * WriteFreely is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Affero General Public License, included
  * in the LICENSE file in this source code package.
  */
 
 package writefreely
 
 import (
 	"fmt"
 	"net/http"
 	"time"
 
 	"github.com/gorilla/mux"
 	"github.com/ikeikeikeike/go-sitemap-generator/v2/stm"
 	"github.com/writeas/web-core/log"
 )
 
 func buildSitemap(host, alias string) *stm.Sitemap {
 	sm := stm.NewSitemap(0)
 	sm.SetDefaultHost(host)
 	if alias != "/" {
 		sm.SetSitemapsPath(alias)
 	}
 
 	sm.Create()
 
 	// Note: Do not call `sm.Finalize()` because it flushes
 	// the underlying datastructure from memory to disk.
 
 	return sm
 }
 
 func handleViewSitemap(app *App, w http.ResponseWriter, r *http.Request) error {
 	vars := mux.Vars(r)
 
 	// Determine canonical blog URL
 	alias := vars["collection"]
 	subdomain := vars["subdomain"]
 	isSubdomain := subdomain != ""
 	if isSubdomain {
 		alias = subdomain
 	}
 
 	host := fmt.Sprintf("%s/%s/", app.cfg.App.Host, alias)
 	var c *Collection
 	var err error
 	pre := "/"
 	if app.cfg.App.SingleUser {
 		c, err = app.db.GetCollectionByID(1)
 	} else {
 		c, err = app.db.GetCollection(alias)
 	}
 	if err != nil {
 		return err
 	}
 	c.hostName = app.cfg.App.Host
 
 	if !isSubdomain {
 		pre += alias + "/"
 	}
 	host = c.CanonicalURL()
 
 	sm := buildSitemap(host, pre)
 	posts, err := app.db.GetPosts(c, 0, false, false, false)
 	if err != nil {
 		log.Error("Error getting posts: %v", err)
 		return err
 	}
 	lastSiteMod := time.Now()
 	for i, p := range *posts {
 		if i == 0 {
 			lastSiteMod = p.Updated
 		}
 		u := stm.URL{
 			{"loc", p.Slug.String},
 			{"changefreq", "weekly"},
 			{"mobile", true},
 			{"lastmod", p.Updated},
 		}
 		if len(p.Images) > 0 {
-			imgs := stm.URL{}
+			imgs := []stm.URL{}
 			for _, i := range p.Images {
-				imgs = append(imgs, []interface{}{
-					[]interface{}{"loc", i},
-					[]interface{}{"title", ""},
+				imgs = append(imgs, stm.URL{
+					{"loc", i},
+					{"title", ""},
 				})
 			}
 			u = append(u, []interface{}{"image", imgs})
 		}
 		sm.Add(u)
 	}
 
 	// Add top URL
 	sm.Add(stm.URL{
 		{"loc", pre},
 		{"changefreq", "daily"},
 		{"priority", "1.0"},
 		{"lastmod", lastSiteMod},
 	})
 
 	w.Write(sm.XMLContent())
 
 	return nil
 }