diff --git a/lib/Twig/Extension.php b/lib/Twig/Extension.php
index 5c8ad5c96..fb657806f 100644
--- a/lib/Twig/Extension.php
+++ b/lib/Twig/Extension.php
@@ -24,7 +24,7 @@ abstract class Twig_Extension implements Twig_ExtensionInterface
     /**
      * Returns the token parser instances to add to the existing list.
      *
-     * @return array An array of Twig_TokenParserInterface or Twig_TokenParserBrokerInterface instances
+     * @return Twig_TokenParserInterface[]
      */
     public function getTokenParsers()
     {
@@ -44,7 +44,7 @@ abstract class Twig_Extension implements Twig_ExtensionInterface
     /**
      * Returns a list of filters to add to the existing list.
      *
-     * @return array An array of filters
+     * @return Twig_SimpleFilter[]
      */
     public function getFilters()
     {
@@ -54,7 +54,7 @@ abstract class Twig_Extension implements Twig_ExtensionInterface
     /**
      * Returns a list of tests to add to the existing list.
      *
-     * @return array An array of tests
+     * @return Twig_SimpleTest[]
      */
     public function getTests()
     {
@@ -64,7 +64,7 @@ abstract class Twig_Extension implements Twig_ExtensionInterface
     /**
      * Returns a list of functions to add to the existing list.
      *
-     * @return array An array of functions
+     * @return Twig_SimpleFunction[]
      */
     public function getFunctions()
     {
diff --git a/lib/Twig/ExtensionInterface.php b/lib/Twig/ExtensionInterface.php
index 49541b02e..92abf7db2 100644
--- a/lib/Twig/ExtensionInterface.php
+++ b/lib/Twig/ExtensionInterface.php
@@ -28,7 +28,7 @@ interface Twig_ExtensionInterface
     /**
      * Returns the token parser instances to add to the existing list.
      *
-     * @return array An array of Twig_TokenParserInterface or Twig_TokenParserBrokerInterface instances
+     * @return Twig_TokenParserInterface[]
      */
     public function getTokenParsers();
 
@@ -42,21 +42,21 @@ interface Twig_ExtensionInterface
     /**
      * Returns a list of filters to add to the existing list.
      *
-     * @return array An array of filters
+     * @return Twig_SimpleFilter[]
      */
     public function getFilters();
 
     /**
      * Returns a list of tests to add to the existing list.
      *
-     * @return array An array of tests
+     * @return Twig_SimpleTest[]
      */
     public function getTests();
 
     /**
      * Returns a list of functions to add to the existing list.
      *
-     * @return array An array of functions
+     * @return Twig_SimpleFunction[]
      */
     public function getFunctions();