diff --git a/src/Monolog/Handler/AbstractHandler.php b/src/Monolog/Handler/AbstractHandler.php
index 79d0904e..3b8a9a6e 100644
--- a/src/Monolog/Handler/AbstractHandler.php
+++ b/src/Monolog/Handler/AbstractHandler.php
@@ -77,6 +77,8 @@ abstract class AbstractHandler implements HandlerInterface
             throw new \InvalidArgumentException('Processors must be valid callables (callback or object with an __invoke method), '.var_export($callback, true).' given');
         }
         array_unshift($this->processors, $callback);
+
+        return $this;
     }
 
     /**
@@ -97,7 +99,7 @@ abstract class AbstractHandler implements HandlerInterface
     public function setFormatter(FormatterInterface $formatter)
     {
         $this->formatter = $formatter;
-        
+
         return $this;
     }
 
@@ -116,11 +118,14 @@ abstract class AbstractHandler implements HandlerInterface
     /**
      * Sets minimum logging level at which this handler will be triggered.
      *
-     * @param integer $level
+     * @param  integer $level
+     * @return self
      */
     public function setLevel($level)
     {
         $this->level = $level;
+
+        return $this;
     }
 
     /**
@@ -138,10 +143,13 @@ abstract class AbstractHandler implements HandlerInterface
      *
      * @param Boolean $bubble True means that bubbling is not permitted.
      *                        False means that this handler allows bubbling.
+     * @return self
      */
     public function setBubble($bubble)
     {
         $this->bubble = $bubble;
+
+        return $this;
     }
 
     /**
diff --git a/src/Monolog/Handler/HandlerInterface.php b/src/Monolog/Handler/HandlerInterface.php
index ac15d7de..a91db978 100644
--- a/src/Monolog/Handler/HandlerInterface.php
+++ b/src/Monolog/Handler/HandlerInterface.php
@@ -61,7 +61,8 @@ interface HandlerInterface
     /**
      * Adds a processor in the stack.
      *
-     * @param callable $callback
+     * @param  callable $callback
+     * @return self
      */
     public function pushProcessor($callback);
 
@@ -75,7 +76,8 @@ interface HandlerInterface
     /**
      * Sets the formatter.
      *
-     * @param FormatterInterface $formatter
+     * @param  FormatterInterface $formatter
+     * @return self
      */
     public function setFormatter(FormatterInterface $formatter);
 
diff --git a/src/Monolog/Handler/NativeMailerHandler.php b/src/Monolog/Handler/NativeMailerHandler.php
index e659cb13..3033c0ba 100644
--- a/src/Monolog/Handler/NativeMailerHandler.php
+++ b/src/Monolog/Handler/NativeMailerHandler.php
@@ -28,12 +28,12 @@ class NativeMailerHandler extends MailHandler
     protected $maxColumnWidth;
 
     /**
-     * @param string|array $to      The receiver of the mail
-     * @param string       $subject The subject of the mail
-     * @param string       $from    The sender of the mail
-     * @param integer      $level   The minimum logging level at which this handler will be triggered
-     * @param boolean      $bubble  Whether the messages that are handled can bubble up the stack or not
-     * @param int          $maxColumnWidth  The maximum column width that the message lines will have
+     * @param string|array $to             The receiver of the mail
+     * @param string       $subject        The subject of the mail
+     * @param string       $from           The sender of the mail
+     * @param integer      $level          The minimum logging level at which this handler will be triggered
+     * @param boolean      $bubble         Whether the messages that are handled can bubble up the stack or not
+     * @param int          $maxColumnWidth The maximum column width that the message lines will have
      */
     public function __construct($to, $subject, $from, $level = Logger::ERROR, $bubble = true, $maxColumnWidth = 70)
     {
diff --git a/src/Monolog/Handler/PushoverHandler.php b/src/Monolog/Handler/PushoverHandler.php
index 9650b755..9408a031 100644
--- a/src/Monolog/Handler/PushoverHandler.php
+++ b/src/Monolog/Handler/PushoverHandler.php
@@ -43,7 +43,7 @@ class PushoverHandler extends SocketHandler
      *                                   sending "high priority" requests to the Pushover API
      * @param integer $emergencyLevel The minimum logging level at which this handler will start
      *                                sending "emergency" requests to the Pushover API
-     * @param integer $retry The retry parameter specifies how often (in seconds) the Pushover servers will send the same notification to the user.
+     * @param integer $retry  The retry parameter specifies how often (in seconds) the Pushover servers will send the same notification to the user.
      * @param integer $expire The expire parameter specifies how many seconds your notification will continue to be retried for (every retry seconds).
      */
     public function __construct($token, $users, $title = null, $level = Logger::CRITICAL, $bubble = true, $useSSL = true, $highPriorityLevel = Logger::CRITICAL, $emergencyLevel = Logger::EMERGENCY, $retry = 30, $expire = 25200)