diff --git a/src/DependencyInjection/Factory/Adapter/SftpFactory.php b/src/DependencyInjection/Factory/Adapter/SftpFactory.php
index 434c6f6..7a3a197 100644
--- a/src/DependencyInjection/Factory/Adapter/SftpFactory.php
+++ b/src/DependencyInjection/Factory/Adapter/SftpFactory.php
@@ -52,7 +52,7 @@ public function addConfiguration(NodeDefinition $node): void
                         ->scalarNode('timeout')->defaultValue(10)->end()
                         ->scalarNode('maxTries')->defaultValue(4)->end()
                         ->scalarNode('hostFingerprint')->defaultNull()->end()
-                        ->scalarNode('connectivity checker')->defaultNull()->end()
+                        ->scalarNode('connectivityChecker')->defaultNull()->end()
                         ->scalarNode('root')->isRequired()->end()
                     ->end()
                 ->end()