diff --git a/coffeelint.json b/coffeelint.json
index b83f0017f..5d1a43952 100644
--- a/coffeelint.json
+++ b/coffeelint.json
@@ -6,7 +6,7 @@
     "level": "error"
   },
   "arrow_spacing": {
-    "level": "warn"
+    "level": "error"
   },
   "line_endings": {
     "level": "error",