diff --git a/lib/cartodb/models/mapconfig_overviews_adapter.js b/lib/cartodb/models/mapconfig_overviews_adapter.js
index df81dfee..70a02dc5 100644
--- a/lib/cartodb/models/mapconfig_overviews_adapter.js
+++ b/lib/cartodb/models/mapconfig_overviews_adapter.js
@@ -39,7 +39,7 @@ MapConfigOverviewsAdapter.prototype.getLayers = function(username, layers, callb
     }
 
     if (!layers || layers.length === 0) {
-        return callback(new Error('XX Missing layers array from layergroup config'));
+        return callback(new Error('Missing layers array from layergroup config'));
     }
 
     return callback(null, layers);