diff --git a/src/ol/base/layer.js b/src/ol/base/layer.js
index 7e8f5829a5..8c7e1ab95a 100644
--- a/src/ol/base/layer.js
+++ b/src/ol/base/layer.js
@@ -107,6 +107,14 @@ ol.Layer.prototype.getVisible = function() {
 };
 
 
+/**
+ * @return {boolean} Is ready.
+ */
+ol.Layer.prototype.isReady = function() {
+  return this.getStore().isReady();
+};
+
+
 /**
  * @param {number} brightness Brightness.
  */