diff --git a/src/ol/view/attribution.js b/src/ol/view/attribution.js
index 230b9b80e0..c2e8d3d271 100644
--- a/src/ol/view/attribution.js
+++ b/src/ol/view/attribution.js
@@ -15,6 +15,7 @@ goog.require('ol.Collection');
 goog.require('ol.CoverageArea');
 goog.require('ol.Layer');
 goog.require('ol.MapProperty');
+goog.require('ol.TileCoverageArea');
 goog.require('ol.View');