diff --git a/src/ol/source/Source.js b/src/ol/source/Source.js
index 295a56d5e7..2eb37ae339 100644
--- a/src/ol/source/Source.js
+++ b/src/ol/source/Source.js
@@ -105,7 +105,7 @@ class Source extends BaseObject {
   }
 
   /**
-   * @return {boolean} Aattributions are collapsible.
+   * @return {boolean} Attributions are collapsible.
    */
   getAttributionsCollapsible() {
     return this.attributionsCollapsible_;