diff --git a/src/Kdyby/Translation/DI/TranslationExtension.php b/src/Kdyby/Translation/DI/TranslationExtension.php
index b12a5c31..148c0976 100644
--- a/src/Kdyby/Translation/DI/TranslationExtension.php
+++ b/src/Kdyby/Translation/DI/TranslationExtension.php
@@ -54,6 +54,7 @@ class TranslationExtension extends Nette\DI\CompilerExtension
 			self::RESOLVER_REQUEST => TRUE,
 			self::RESOLVER_HEADER => TRUE,
 		),
+		'hookToMonolog' => TRUE, // checks for \Monolog\Logger and automatically hooks logging of untranslated messages
 	);
 
 	/**
@@ -100,6 +101,10 @@ public function loadConfiguration()
 			$catalogueCompiler->addSetup('enableDebugMode');
 		}
 
+		if ( $config['hookToMonolog'] && class_exists('\Monolog\Logger' ) ) {
+			$translator->addSetup('setLogger', array( '@Monolog\Logger' ));
+		}
+
 		$this->loadLocaleResolver($config);
 
 		$builder->addDefinition($this->prefix('helpers'))
diff --git a/src/Kdyby/Translation/Translator.php b/src/Kdyby/Translation/Translator.php
index 24dae9fe..673ada2c 100644
--- a/src/Kdyby/Translation/Translator.php
+++ b/src/Kdyby/Translation/Translator.php
@@ -73,7 +73,11 @@ class Translator extends BaseTranslator implements ITranslator
 	 */
 	private $localeWhitelist;
 
+	/** @var callable[] */
+	public $onUntranslated;
 
+	/** @var \Monolog\Logger */
+	private $logger;
 
 	/**
 	 * @param IUserLocaleResolver $localeResolver
@@ -134,6 +138,9 @@ public function translate($message, $count = NULL, $parameters = array(), $domai
 			return $message;
 
 		} elseif ($message instanceof Nette\Utils\Html) {
+			if (!empty($this->onUntranslated) )
+				$this->onUntranslated( $message );
+
 			if ($this->panel) {
 				$this->panel->markUntranslated($message);
 			}
@@ -173,6 +180,9 @@ public function trans($message, array $parameters = array(), $domain = NULL, $lo
 
 		$result = parent::trans($id, $parameters, $domain, $locale);
 		if ($result === "\x01") {
+			if (!empty($this->onUntranslated) )
+				$this->onUntranslated( $message );
+
 			if ($this->panel !== NULL) {
 				$this->panel->markUntranslated($message);
 			}
@@ -211,6 +221,9 @@ public function transChoice($message, $number, array $parameters = array(), $dom
 		}
 
 		if ($result === "\x01") {
+			if (!empty($this->onUntranslated) )
+				$this->onUntranslated( $message );
+
 			if ($this->panel !== NULL) {
 				$this->panel->markUntranslated($message);
 			}
@@ -416,6 +429,26 @@ public static function buildWhitelistRegexp($whitelist)
 		return $whitelist ? '~^(' . implode('|', $whitelist) . ')~i' : NULL;
 	}
 
+	/**
+	 * @param \Monolog\Logger $logger
+	 * @return Translator
+	 */
+	public function setLogger( $logger ) {
+		$this->logger = $logger;
+		if ( $logger !== NULL ) {
+			$this->onUntranslated[] = array( $this, 'logUntranslated' );
+		}
+		return $this;
+	}
+
+	/**
+	 * @param string $message
+	 */
+	public function logUntranslated($message) {
+		if ( $this->logger !== NULL ) {
+			$this->logger->warning( "Untranslated message '{$message}'" );
+		}
+	}
 
 
 	/*************************** Nette\Object ***************************/