diff --git a/lib/private/AllConfig.php b/lib/private/AllConfig.php
index b1b23ce1dd192..6b93fc9f6377b 100644
--- a/lib/private/AllConfig.php
+++ b/lib/private/AllConfig.php
@@ -497,7 +497,7 @@ public function getUsersForUserValue($appName, $key, $value) {
 	 * @param int|null $limit how many users to fetch
 	 * @param int $offset from which offset to fetch
 	 * @param string $search search users based on search params
-	 * @return list<string> list of user IDs
+	 * @return array<string, string> list of user IDs
 	 */
 	public function getLastLoggedInUsers(?int $limit = null, int $offset = 0, string $search = ''): array {
 		// TODO - FIXME
diff --git a/lib/public/IConfig.php b/lib/public/IConfig.php
index 175f0e90c4916..01d513fc2b195 100644
--- a/lib/public/IConfig.php
+++ b/lib/public/IConfig.php
@@ -256,7 +256,7 @@ public function getUsersForUserValue($appName, $key, $value);
 	 * @param int|null $limit how many records to fetch
 	 * @param int $offset from which offset to fetch
 	 * @param string $search search users based on search params
-	 * @return list<string> list of user IDs
+	 * @return array<string, string> list of user IDs
 	 * @since 30.0.0
 	 */
 	public function getLastLoggedInUsers(?int $limit = null, int $offset = 0, string $search = ''): array;