diff --git a/_config.php b/_config.php
deleted file mode 100644
index e4447e5..0000000
--- a/_config.php
+++ /dev/null
@@ -1,4 +0,0 @@
-<?php
-
-//Attach BetterNavigator to Controllers
-ContentController::add_extension('ContentController','BetterNavigator');
\ No newline at end of file
diff --git a/_config/config.yml b/_config/config.yml
index a6eb8e6..e2bb3b2 100644
--- a/_config/config.yml
+++ b/_config/config.yml
@@ -4,4 +4,7 @@ After: 'framework/*','cms/*'
 ---
 LeftAndMain:
   extra_requirements_javascript:
-    - 'betternavigator/javascript/BN.LeftAndMain.Preview.js'
\ No newline at end of file
+    - 'betternavigator/javascript/BN.LeftAndMain.Preview.js'
+ContentController:
+  extensions:
+    - BetterNavigator
\ No newline at end of file
diff --git a/css/betternavigator.css b/css/betternavigator.css
index 287abdd..93e64b3 100644
--- a/css/betternavigator.css
+++ b/css/betternavigator.css
@@ -1,5 +1,5 @@
 .bn-icon-sprite, .bn-icon-close, .bn-icon-cog, .bn-icon-db, .bn-icon-devmode, .bn-icon-edit, .bn-icon-flush, .bn-icon-info, .bn-icon-tick, .bn-icon-tools, .bn-icon-user, .bn-icon-view {
-  background-image: url('/betternavigator/images/bn-icon-sff60849a67.png');
+  background-image: url('../images/bn-icon-sff60849a67.png');
   background-repeat: no-repeat;
 }