diff --git a/typo3/sysext/core/Classes/Utility/ExtensionManagementUtility.php b/typo3/sysext/core/Classes/Utility/ExtensionManagementUtility.php
index 37a6828d7a664ff8566b03dcef63f18efbf4074a..e1d48bb2003f55e61dab9ba1226418f6a23b4d3a 100644
--- a/typo3/sysext/core/Classes/Utility/ExtensionManagementUtility.php
+++ b/typo3/sysext/core/Classes/Utility/ExtensionManagementUtility.php
@@ -1123,10 +1123,11 @@ class ExtensionManagementUtility
      * Adds an entry to the list of plugins in content elements of type "Insert plugin"
      * Takes the $itemArray (label, value[,icon]) and adds to the items-array of $GLOBALS['TCA'][tt_content] elements with CType "listtype" (or another field if $type points to another fieldname)
      * If the value (array pos. 1) is already found in that items-array, the entry is substituted, otherwise the input array is added to the bottom.
-     * Use this function to add a frontend plugin to this list of plugin-types - or more generally use this function to add an entry to any selectorbox/radio-button set in the TCEFORMS
+     * Use this function to add a frontend plugin to this list of plugin-types - or more generally use this function to add an entry to any selectorbox/radio-button set in the FormEngine
+     *
      * FOR USE IN files in Configuration/TCA/Overrides/*.php Use in ext_tables.php FILES may break the frontend.
      *
-     * @param array $itemArray Numerical array: [0] => Plugin label, [1] => Underscored extension key, [2] => Path to plugin icon relative to TYPO3_mainDir
+     * @param array $itemArray Numerical array: [0] => Plugin label, [1] => Plugin identifier / plugin key, ideally prefixed with a extension-specific name (e.g. "events2_list"), [2] => Path to plugin icon relative to TYPO3_mainDir
      * @param string $type Type (eg. "list_type") - basically a field from "tt_content" table
      * @param string $extensionKey The extension key
      * @throws \RuntimeException