diff --git a/lib/SimpleSAML/IdP/LogoutHandler.php b/lib/SimpleSAML/IdP/LogoutHandler.php
index b3e3317b0aebfff28ff451a386d4938e188d32e1..a30f06fc57b2aa56f21f0b44ce4f07d488d17309 100644
--- a/lib/SimpleSAML/IdP/LogoutHandler.php
+++ b/lib/SimpleSAML/IdP/LogoutHandler.php
@@ -3,7 +3,7 @@
 /**
  * Base class for logout handlers.
  *
- * @package simpleSAMLphp
+ * @package SimpleSAMLphp
  */
 abstract class SimpleSAML_IdP_LogoutHandler {
 
@@ -18,7 +18,7 @@ abstract class SimpleSAML_IdP_LogoutHandler {
 	/**
 	 * Initialize this logout handler.
 	 *
-	 * @param SimpleSAML_IdP $idp  The IdP we are logging out from.
+	 * @param SimpleSAML_IdP $idp The IdP we are logging out from.
 	 */
 	public function __construct(SimpleSAML_IdP $idp) {
 		$this->idp = $idp;
@@ -30,8 +30,8 @@ abstract class SimpleSAML_IdP_LogoutHandler {
 	 *
 	 * This function must never return.
 	 *
-	 * @param array &$state  The logout state.
-	 * @param string|NULL $assocId  The association that started the logout.
+	 * @param array &$state The logout state.
+	 * @param string|null $assocId The association that started the logout.
 	 */
 	abstract public function startLogout(array &$state, $assocId);
 
@@ -41,15 +41,15 @@ abstract class SimpleSAML_IdP_LogoutHandler {
 	 *
 	 * This function will never return.
 	 *
-	 * @param string $assocId  The association that is terminated.
-	 * @param string|NULL $relayState  The RelayState from the start of the logout.
-	 * @param SimpleSAML_Error_Exception|NULL $error  The error that occurred during session termination (if any).
+	 * @param string $assocId The association that is terminated.
+	 * @param string|null $relayState The RelayState from the start of the logout.
+	 * @param SimpleSAML_Error_Exception|null $error The error that occurred during session termination (if any).
 	 */
 	public function onResponse($assocId, $relayState, SimpleSAML_Error_Exception $error = NULL) {
 		assert('is_string($assocId)');
 		assert('is_string($relayState) || is_null($relayState)');
 
-		/* Don't do anything by default. */
+		// don't do anything by default
 	}
 
 }