diff --git a/_config.php b/_config.php
index 8cdc4b9..b3d9bbc 100644
--- a/_config.php
+++ b/_config.php
@@ -1,10 +1 @@
 <?php
-// Add wordpress import extension to BlogHolder page type
-if (class_exists('BlogHolder'))
-{
-	Object::add_extension('BlogHolder', 'WpImporter');
-	Object::add_extension('BlogEntry', 'WpImportedObject');
-}
-
-if(class_exists('Comment'))
-	Object::add_extension('Comment', 'WpImportedObject');
\ No newline at end of file
diff --git a/_config/wordpressimport.yml b/_config/wordpressimport.yml
new file mode 100644
index 0000000..c5911e9
--- /dev/null
+++ b/_config/wordpressimport.yml
@@ -0,0 +1,12 @@
+---
+Name: wordpressimport
+---
+BlogHolder:
+  extensions: 
+    - WpImporter
+BlogEntry:
+  extensions:
+    - WpImportedObject
+Comment:
+  extensions:
+    - WpImportedObject
\ No newline at end of file