diff --git a/src/streaming/protection/controllers/ProtectionController.js b/src/streaming/protection/controllers/ProtectionController.js
index 80dc68ed47..74c60bf63a 100644
--- a/src/streaming/protection/controllers/ProtectionController.js
+++ b/src/streaming/protection/controllers/ProtectionController.js
@@ -1040,7 +1040,7 @@ function ProtectionController(config) {
 
     /**
      * Returns all available key systems
-     * @return {*|*[]}
+     * @return {array}
      */
     function getKeySystems() {
         return protectionKeyController ? protectionKeyController.getKeySystems() : [];