diff --git a/library/HTMLPurifier/Config.php b/library/HTMLPurifier/Config.php
index f569d40c..4ecaa141 100644
--- a/library/HTMLPurifier/Config.php
+++ b/library/HTMLPurifier/Config.php
@@ -408,7 +408,7 @@ class HTMLPurifier_Config
* maybeGetRawHTMLDefinition, which is more explicitly
* named, instead.
*
- * @return HTMLPurifier_HTMLDefinition
+ * @return HTMLPurifier_HTMLDefinition|null
*/
public function getHTMLDefinition($raw = false, $optimized = false)
{
@@ -427,7 +427,7 @@ class HTMLPurifier_Config
* maybeGetRawCSSDefinition, which is more explicitly
* named, instead.
*
- * @return HTMLPurifier_CSSDefinition
+ * @return HTMLPurifier_CSSDefinition|null
*/
public function getCSSDefinition($raw = false, $optimized = false)
{
@@ -446,7 +446,7 @@ class HTMLPurifier_Config
* maybeGetRawURIDefinition, which is more explicitly
* named, instead.
*
- * @return HTMLPurifier_URIDefinition
+ * @return HTMLPurifier_URIDefinition|null
*/
public function getURIDefinition($raw = false, $optimized = false)
{
@@ -468,7 +468,7 @@ class HTMLPurifier_Config
* maybe semantics is the "right thing to do."
*
* @throws HTMLPurifier_Exception
- * @return HTMLPurifier_Definition
+ * @return HTMLPurifier_Definition|null
*/
public function getDefinition($type, $raw = false, $optimized = false)
{
@@ -647,7 +647,7 @@ class HTMLPurifier_Config
}
/**
- * @return HTMLPurifier_HTMLDefinition
+ * @return HTMLPurifier_HTMLDefinition|null
*/
public function maybeGetRawHTMLDefinition()
{
@@ -655,7 +655,7 @@ class HTMLPurifier_Config
}
/**
- * @return HTMLPurifier_CSSDefinition
+ * @return HTMLPurifier_CSSDefinition|null
*/
public function maybeGetRawCSSDefinition()
{
@@ -663,7 +663,7 @@ class HTMLPurifier_Config
}
/**
- * @return HTMLPurifier_URIDefinition
+ * @return HTMLPurifier_URIDefinition|null
*/
public function maybeGetRawURIDefinition()
{