diff --git a/tasks/main.yml b/tasks/main.yml
index d9441e4279c4c90b2fb436438383b4b8914bd500..d1febcdba0c5a8395f61f3bae44afc036420415c 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -29,7 +29,7 @@
 
 - name: Generate Postfix transport map
   template:
-    src: templates/transport.in.js
+    src: templates/transport.in.j2
     dest: /etc/postfix/transport.in
     owner: root
     group: root
diff --git a/templates/transport.in.js b/templates/transport.in.j2
similarity index 100%
rename from templates/transport.in.js
rename to templates/transport.in.j2