diff --git a/views/ngXosViews/diagnostic/.eslintrc b/views/ngXosViews/diagnostic/.eslintrc
index c852748..c6e1175 100644
--- a/views/ngXosViews/diagnostic/.eslintrc
+++ b/views/ngXosViews/diagnostic/.eslintrc
@@ -16,6 +16,7 @@
     ],
     "rules": {
         "quotes": [2, "single"],
+        "no-undef": 2,
         "camelcase": [1, {"properties": "always"}],
         "no-underscore-dangle": 1,
         "eqeqeq": [2, "smart"],