diff --git a/lib/routes/avatars.js b/lib/routes/avatars.js
index 24d6497..9541faf 100644
--- a/lib/routes/avatars.js
+++ b/lib/routes/avatars.js
@@ -14,7 +14,8 @@ function handle_default(img_status, userId, size, def, req, err, callback) {
       var parsed = req.url;
       delete parsed.query.default;
       delete parsed.search;
-      parsed.pathname = parsed.pathname.replace(userId, def);
+      parsed.path_list[1] = def;
+      parsed.pathname = "/" + parsed.path_list.join("/");
       var newUrl = url.format(parsed);
       callback({
         status: img_status,
diff --git a/lib/routes/renders.js b/lib/routes/renders.js
index 90ca267..8295535 100644
--- a/lib/routes/renders.js
+++ b/lib/routes/renders.js
@@ -19,7 +19,8 @@ function handle_default(rid, scale, overlay, body, img_status, userId, size, def
       var parsed = req.url;
       delete parsed.query.default;
       delete parsed.search;
-      parsed.pathname = parsed.pathname.replace(userId, def);
+      parsed.path_list[2] = def;
+      parsed.pathname = "/" + parsed.path_list.join("/");
       var newUrl = url.format(parsed);
       callback({
         status: img_status,
diff --git a/lib/routes/skins.js b/lib/routes/skins.js
index f71991a..445c7cc 100644
--- a/lib/routes/skins.js
+++ b/lib/routes/skins.js
@@ -15,7 +15,8 @@ function handle_default(img_status, userId, def, req, err, callback) {
       var parsed = req.url;
       delete parsed.query.default;
       delete parsed.search;
-      parsed.pathname = parsed.pathname.replace(userId, def);
+      parsed.path_list[1] = def;
+      parsed.pathname = "/" + parsed.path_list.join("/");
       var newUrl = url.format(parsed);
       callback({
         status: img_status,