diff --git a/public/Computer/gdb.pdf b/public/categories/computer/gdb.pdf
similarity index 100%
rename from public/Computer/gdb.pdf
rename to public/categories/computer/gdb.pdf
diff --git a/public/db.json b/public/db.json
index 24c501a..ccc0db2 100644
--- a/public/db.json
+++ b/public/db.json
@@ -1,7 +1,7 @@
 {
   "categories": [
     {
-      "name": "Computer",
+      "name": "computer",
       "files": ["modern-full-stack.pdf", "gdb.pdf"]
     }
   ]
diff --git a/src/App.vue b/src/App.vue
index 5dbe5cb..f5342b0 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -33,6 +33,7 @@
                               url_root +
                               'pdfjs/web/viewer.html?file=' +
                               url_root +
+                              'categories' +
                               category.name +
                               '/' +
                               file
@@ -42,7 +43,7 @@
                           ></a>
                         </td>
                         <td class="text-center">
-                          <a :href="`${url_root}${category.name}/${file}`"
+                          <a :href="`${url_root}categories/${category.name}/${file}`"
                             ><i class="bi bi-cloud-download"></i
                           ></a>
                         </td>