diff --git a/composer.json b/composer.json
index 8e7ae2b..20e46d4 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
 	],
 	"require": {
 		"php": ">=7.4 <8.1",
-		"nette/di": "^3.0.5",
+		"nette/di": "^3.0.7",
 		"nette/utils": "^3.0",
 		"monolog/monolog": "^2.2",
 		"nette/schema": "^1.2"
diff --git a/src/DI/MonologExtension.php b/src/DI/MonologExtension.php
index 3e2b469..4b5f9b0 100644
--- a/src/DI/MonologExtension.php
+++ b/src/DI/MonologExtension.php
@@ -64,7 +64,12 @@ public function getConfigSchema(): Schema
 			'tracyHook' => Expect::bool(true),
 			'tracyBaseUrl' => Expect::string(),
 			'usePriorityProcessor' => Expect::bool(true),
-			'registerFallback' => Expect::bool(false),
+			'fallback' => Expect::structure([
+				'register' => Expect::bool(false),
+				'defaultFormat' => Expect::string('[%datetime%] %message% %context% %extra%'),
+				'priorityFormat' => Expect::string('[%datetime%] %level_name%: %message% %context% %extra%'),
+			]),
+			'registerFallback' => Expect::bool(false)->deprecated(),
 			'accessPriority' => Expect::string(ILogger::INFO),
 		]);
 	}
@@ -86,6 +91,11 @@ public function loadConfiguration(): void
 		# Load other stuff
 		$this->loadHandlers();
 		$this->loadProcessors();
+
+		# registerFallback transformation
+		if ($this->config->registerFallback) {
+			$this->config->fallback->register = true;
+		}
 	}
 
 	protected function loadHandlers(): void
@@ -132,23 +142,23 @@ protected function getDefinition($definition, string $name)
 	{
 		$builder = $this->getContainerBuilder();
 
-		// String definition
+		# String definition
 		if (is_string($definition)) {
 
-			// @alias
+			# @alias
 			if (Strings::startsWith($definition, '@')) {
 				$defName = substr($definition, 1);
 
 				return $builder->hasDefinition($defName) ? $builder->getDefinition($defName) : $definition;
 			}
 
-			// Inline definition
+			# Inline definition
 			return $builder
 				->addDefinition($name, (new ServiceDefinition)->setType($definition))
 				->setAutowired(false);
 		}
 
-		// Add service and set autowired
+		# Add service and set autowired
 		if (is_array($definition)) {
 			$definition['autowired'] ??= false;
 		}
@@ -156,7 +166,7 @@ protected function getDefinition($definition, string $name)
 			$name => $definition,
 		]);
 
-		return $name;
+		return '@' . $name;
 	}
 
 	public function beforeCompile(): void
@@ -168,20 +178,22 @@ public function beforeCompile(): void
 		$logger->setArgument('handlers', $this->getDefinitionsByPriority($this->handlers));
 		$logger->setArgument('processors', $this->getDefinitionsByPriority($this->processors));
 
-		// Register fallback, if no handlers is set or registerFallback is true
-		if (!$this->handlers || $this->config->registerFallback) {
+		# Register fallback, if no handlers is set or fallback->register is true
+		if (!$this->handlers || $this->config->fallback->register) {
 			$builder
 				->addDefinition($this->prefix('fallback'))
 				->setFactory(FallbackNetteHandler::class, [
 					'appName' => $this->config->name,
 					'logDir' => $this->config->logDir,
+					'defaultFormat' => $this->config->fallback->defaultFormat,
+					'priorityFormat' => $this->config->fallback->priorityFormat,
 				])
 				->setAutowired(false);
 
 			$logger->addSetup('pushHandler', ['@' . $this->prefix('fallback')]);
 		}
 
-		// Decorator for LoggerAwareInterface
+		# Decorator for LoggerAwareInterface
 		foreach ($builder->findByType(LoggerAwareInterface::class) as $service) {
 			/** @var ServiceDefinition $service */
 			$service->addSetup('setLogger', ['@' . $this->prefix('logger')]);
diff --git a/src/Handler/FallbackNetteHandler.php b/src/Handler/FallbackNetteHandler.php
index 91ff9dd..c6ae1c6 100644
--- a/src/Handler/FallbackNetteHandler.php
+++ b/src/Handler/FallbackNetteHandler.php
@@ -19,21 +19,25 @@
 class FallbackNetteHandler extends \Monolog\Handler\ErrorLogHandler
 {
 
-	use \Nette\SmartObject;
-
 	private string $appName;
 	private string $logDir;
 	private LineFormatter $defaultFormatter;
 	private LineFormatter $priorityFormatter;
 
-	public function __construct(string $appName, string $logDir, bool $expandNewlines = FALSE, int $level = MonologLogger::DEBUG)
-	{
+	public function __construct(
+		string $appName,
+		string $logDir,
+		string $defaultFormat,
+		string $priorityFormat,
+		bool $expandNewlines = FALSE,
+		int $level = MonologLogger::DEBUG
+	) {
 		parent::__construct(self::SAPI, $level, TRUE, $expandNewlines);
 		$this->appName = $appName;
 		$this->logDir = $logDir;
 
-		$this->defaultFormatter = new LineFormatter('[%datetime%] %message% %context% %extra%');
-		$this->priorityFormatter = new LineFormatter('[%datetime%] %level_name%: %message% %context% %extra%');
+		$this->defaultFormatter = new LineFormatter($defaultFormat);
+		$this->priorityFormatter = new LineFormatter($priorityFormat);
 	}
 
 	/**
diff --git a/tests/Monolog/ExtensionTest.phpt b/tests/Monolog/ExtensionTest.phpt
index d42130f..30aea67 100644
--- a/tests/Monolog/ExtensionTest.phpt
+++ b/tests/Monolog/ExtensionTest.phpt
@@ -10,6 +10,7 @@ namespace Tests\Monolog;
 
 use Mallgroup\Monolog\CustomChannel;
 use Mallgroup\Monolog\DI\MonologExtension;
+use Mallgroup\Monolog\Handler\FallbackNetteHandler;
 use Mallgroup\Monolog\Logger as MonologLogger;
 use Mallgroup\Monolog\Processor\PriorityProcessor;
 use Mallgroup\Monolog\Processor\TracyExceptionProcessor;
@@ -247,6 +248,15 @@ class ExtensionTest extends \Tester\TestCase
 		Assert::type(GitProcessor::class, array_shift($processors));
 	}
 
+	public function testDeprecated(): void {
+		Assert::error(function(){
+			$dic = $this->createContainer('deprecated');
+			$logger = $dic->getByType(MonologLogger::class);
+			$handlers = $logger->getHandlers();
+
+			Assert::type(FallbackNetteHandler::class, array_shift($handlers));
+		}, E_USER_DEPRECATED);
+	}
 }
 
 (new ExtensionTest())->run();
diff --git a/tests/Monolog/FallbackNetteHandlerTest.phpt b/tests/Monolog/FallbackNetteHandlerTest.phpt
index 0f5c496..3fc5439 100644
--- a/tests/Monolog/FallbackNetteHandlerTest.phpt
+++ b/tests/Monolog/FallbackNetteHandlerTest.phpt
@@ -30,7 +30,12 @@ class FallbackNetteHandlerTest extends \Tester\TestCase
 			unlink($logFile);
 		}
 
-		$this->handler = new FallbackNetteHandler('mall', $this->logDir);
+		$this->handler = new FallbackNetteHandler(
+			'mall',
+			$this->logDir,
+			'[%datetime%] %message% %context% %extra%',
+			'[%datetime%] %level_name%: %message% %context% %extra%'
+		);
 
 		$this->now = new DateTime();
 	}
diff --git a/tests/Monolog/config/default.neon b/tests/Monolog/config/default.neon
index 2173e8d..9ccc00c 100644
--- a/tests/Monolog/config/default.neon
+++ b/tests/Monolog/config/default.neon
@@ -1,3 +1,4 @@
 monolog:
-	registerFallback: true
+	fallback:
+		register: true
 	logDir: %tempDir%/log
\ No newline at end of file
diff --git a/tests/Monolog/config/deprecated.neon b/tests/Monolog/config/deprecated.neon
new file mode 100644
index 0000000..2173e8d
--- /dev/null
+++ b/tests/Monolog/config/deprecated.neon
@@ -0,0 +1,3 @@
+monolog:
+	registerFallback: true
+	logDir: %tempDir%/log
\ No newline at end of file
diff --git a/tests/Monolog/config/handlers.neon b/tests/Monolog/config/handlers.neon
index ff68465..c5f6504 100644
--- a/tests/Monolog/config/handlers.neon
+++ b/tests/Monolog/config/handlers.neon
@@ -1,6 +1,10 @@
+services:
+	browserConsoleHandler: Monolog\Handler\BrowserConsoleHandler
+
 monolog:
 	logDir: %tempDir%/log
 	handlers:
-		- Monolog\Handler\BrowserConsoleHandler
-		- Monolog\Handler\ChromePHPHandler
+		- @browserConsoleHandler
+		-
+			factory: Monolog\Handler\ChromePHPHandler
 		- Monolog\Handler\NewRelicHandler