diff --git a/js/chapter_list.js b/js/chapter_list.js
index fac1b6a..6374c49 100644
--- a/js/chapter_list.js
+++ b/js/chapter_list.js
@@ -9,7 +9,7 @@ function load_info(remote, id) {
     .then(manga => manga.json())
     .then(function (manga) {
         var text = document.querySelector("#info #text");
-        document.getElementById("cover").src = base+"/manga/thumbnail?id="+id;
+        document.getElementById("cover").src = base+"/thumbnail/"+id+".webp";
 
         text.appendChild(Object.assign(
             document.createElement("h2"),
diff --git a/js/title_list.js b/js/title_list.js
index 096e2f5..a52f94a 100644
--- a/js/title_list.js
+++ b/js/title_list.js
@@ -29,7 +29,7 @@ function load_titles(remote) {
             ))
             .appendChild(Object.assign(
                 document.createElement("img"),
-                {className: "thumbnail", src: base+"/manga/thumbnail?id="+manga["id"]}
+                {className: "thumbnail", src: base+"/thumbnail/"+manga["id"]+".webp"}
             ));
             //title
             first_row.appendChild(Object.assign(