diff --git a/Manifest.json b/Manifest.json
index d70a5f00d..4f2fe2b8b 100644
--- a/Manifest.json
+++ b/Manifest.json
@@ -21,6 +21,12 @@
     "resource": "source/resource",
     "translation": "source/translation"
   },
+  "externalResources": {
+    "script": [],
+    "css": [
+      "hkollmann/mobilegrid/scss/custom.scss"
+    ]
+  },
   "requires": {
     "@qooxdoo/compiler": "^1.0.0-beta",
     "@qooxdoo/framework": "^6.0.0-alpha"
diff --git a/compile.json b/compile.json
index 1e5337400..628b09fac 100644
--- a/compile.json
+++ b/compile.json
@@ -54,5 +54,8 @@
 			"ecmaVersion": 2017
 		},
 		"rules": {}
+	},
+	"sass": {
+	   "compiler": "legacy"
 	}
 }
\ No newline at end of file
diff --git a/source/class/hkollmann/mobilegrid/demo/Application.js b/source/class/hkollmann/mobilegrid/demo/Application.js
index 12c9750ea..732bcd816 100644
--- a/source/class/hkollmann/mobilegrid/demo/Application.js
+++ b/source/class/hkollmann/mobilegrid/demo/Application.js
@@ -18,7 +18,7 @@
 
 ************************************************************************ */
 /**
- * @asset(mobilegrid/*)
+ * @asset(hkollmann/mobilegrid/*)
  */
 qx.Class.define("hkollmann.mobilegrid.demo.Application", {
   extend : qx.application.Mobile,
diff --git a/source/class/hkollmann/mobilegrid/ui/container/Grid.js b/source/class/hkollmann/mobilegrid/ui/container/Grid.js
index 636769de2..0a15acb2c 100644
--- a/source/class/hkollmann/mobilegrid/ui/container/Grid.js
+++ b/source/class/hkollmann/mobilegrid/ui/container/Grid.js
@@ -19,7 +19,7 @@
 ************************************************************************ */
 /*
  * @require(hkollmann.mobilegrid.event.type.GridEvent)
- * @asset(hkollmann/mobilegrid/css/custom.css)
+ * @asset(hkollmann/mobilegrid/*)
  */
 /**
  *