diff --git a/src/ol/base/store.js b/src/ol/base/store.js
index 58b55d267b..e92da71022 100644
--- a/src/ol/base/store.js
+++ b/src/ol/base/store.js
@@ -66,14 +66,6 @@ ol.Store.prototype.getResolutions = goog.abstractMethod;
 ol.Store.prototype.isReady = goog.functions.TRUE;
 
 
-/**
- * @param {string|undefined} attribution Attribution.
- */
-ol.Store.prototype.setAttribution = function(attribution) {
-  this.attribution_ = attribution;
-};
-
-
 /**
  * @param {ol.Extent} extent Extent.
  */