diff --git a/editor/svg-editor.js b/editor/svg-editor.js
index 5af46827..ba8bed98 100644
--- a/editor/svg-editor.js
+++ b/editor/svg-editor.js
@@ -132,7 +132,7 @@
 
 		/**
 		* Store and retrieve preferences
-		* @param {string} key
+		* @param {string} key The preference name to be retrieved or set
 		* @param {string} [val] The value. If the value supplied is null or undefined, no change to the preference will be made.
 		* @returns {string} If val is not present (or is null or undefined), the value of the previously stored preference will be returned.
 		*/