diff --git a/books/templates/hostname.tpl b/books/templates/hostname.j2
similarity index 100%
rename from books/templates/hostname.tpl
rename to books/templates/hostname.j2
diff --git a/books/void_base.yaml b/books/void_base.yaml
index 7e1bc01..78d9003 100644
--- a/books/void_base.yaml
+++ b/books/void_base.yaml
@@ -75,7 +75,7 @@
   tasks:
     - name: Set hostname
       ansible.builtin.template:
-        src: hostname.tpl
+        src: hostname.j2
         dest: /etc/hostname
 
     - name: Set timezone