diff --git a/core/lib/Drupal/Core/Config/Config.php b/core/lib/Drupal/Core/Config/Config.php
index 79f9bbb..5b46f29 100644
--- a/core/lib/Drupal/Core/Config/Config.php
+++ b/core/lib/Drupal/Core/Config/Config.php
@@ -153,6 +153,9 @@ public function setName($name) {
   /**
    * Validates the configuration object name.
    *
+   * @param string $name
+   *  The name of the configuration object.
+   *
    * @throws \Drupal\Core\Config\ConfigNameException
    *
    * @see Config::MAX_NAME_LENGTH
@@ -324,7 +327,7 @@ protected function resetOverriddenData() {
    *
    * @param string $key
    *   Identifier to store value in configuration.
-   * @param string $value
+   * @param mixed $value
    *   Value to associate with identifier.
    *
    * @return \Drupal\Core\Config\Config
@@ -349,7 +352,7 @@ public function set($key, $value) {
   }
 
   /**
-   * Unsets value in this configuration object.
+   * Unsets a value in this configuration object.
    *
    * @param string $key
    *   Name of the key whose value should be unset.