diff --git a/notebook/static/notebook/js/actions.js b/notebook/static/notebook/js/actions.js
index f9fcfcbb1..3b4fe8ba4 100644
--- a/notebook/static/notebook/js/actions.js
+++ b/notebook/static/notebook/js/actions.js
@@ -949,7 +949,7 @@ define([
 
     ActionHandler.prototype.get_name = function(name_or_data){
         /**
-         * given an `action` or `name` of a action, return the name attached to this action.
+         * given an `action` or `name` of an action, return the name attached to this action.
          * if given the name of and corresponding actions does not exist in registry, return `null`.
          **/