diff --git a/Dbal/Logging/BacktraceLogger.php b/Dbal/Logging/BacktraceLogger.php
index 34ba79691..9cd29494a 100644
--- a/Dbal/Logging/BacktraceLogger.php
+++ b/Dbal/Logging/BacktraceLogger.php
@@ -4,12 +4,12 @@
 
 use Doctrine\DBAL\Logging\DebugStack;
 
-class BacktraceLogger extends DebugStack
+final class BacktraceLogger extends DebugStack
 {
     /**
      * {@inheritdoc}
      */
-    public function startQuery($sql, ?array $params = null, ?array $types = null)
+    public function startQuery($sql, ?array $params = null, ?array $types = null) : void
     {
         parent::startQuery($sql, $params, $types);
 
diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 5f7efeca6..6f75d1b7d 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -143,7 +143,10 @@ private function getDbalConnectionsNode()
                 ->scalarNode('schema_filter')->end()
                 ->booleanNode('logging')->defaultValue($this->debug)->end()
                 ->booleanNode('profiling')->defaultValue($this->debug)->end()
-                ->booleanNode('profiling_backtrace')->defaultValue(false)->end()
+                ->booleanNode('profiling_backtrace')
+                    ->defaultValue(false)
+                    ->info('To enable Query backtrace record')
+                ->end()
                 ->scalarNode('server_version')->end()
                 ->scalarNode('driver_class')->end()
                 ->scalarNode('wrapper_class')->end()
diff --git a/DependencyInjection/DoctrineExtension.php b/DependencyInjection/DoctrineExtension.php
index 5481cb2d1..475aaf39d 100644
--- a/DependencyInjection/DoctrineExtension.php
+++ b/DependencyInjection/DoctrineExtension.php
@@ -134,11 +134,9 @@ protected function loadDbalConnection($name, array $connection, ContainerBuilder
         unset($connection['logging']);
 
         if ($connection['profiling'] || $connection['profiling_backtrace']) {
-            if ($connection['profiling_backtrace']) {
-                $profilingAbstractId = 'doctrine.dbal.logger.backtrace';
-            } else {
-                $profilingAbstractId = 'doctrine.dbal.logger.profiling';
-            }
+            $profilingAbstractId = $connection['profiling_backtrace'] ?
+                'doctrine.dbal.logger.backtrace' :
+                'doctrine.dbal.logger.profiling';
 
             $profilingLoggerId = $profilingAbstractId . '.' . $name;
             $container->setDefinition($profilingLoggerId, new ChildDefinition($profilingAbstractId));
diff --git a/Tests/Dbal/Logging/BacktraceLoggerTest.php b/Tests/Dbal/Logging/BacktraceLoggerTest.php
index e7cb152d4..b06236cb1 100644
--- a/Tests/Dbal/Logging/BacktraceLoggerTest.php
+++ b/Tests/Dbal/Logging/BacktraceLoggerTest.php
@@ -7,7 +7,7 @@
 
 class BacktraceLoggerTest extends TestCase
 {
-    public function testBacktraceLogged()
+    public function testBacktraceLogged() : void
     {
         $logger = new BacktraceLogger();
         $logger->startQuery('SELECT column FROM table');