diff --git a/src/Command/ElFinderInstallerCommand.php b/src/Command/ElFinderInstallerCommand.php
index 6d21f9f..125d3e3 100644
--- a/src/Command/ElFinderInstallerCommand.php
+++ b/src/Command/ElFinderInstallerCommand.php
@@ -42,12 +42,13 @@ protected function configure(): void
 
     protected function execute(InputInterface $input, OutputInterface $output): int
     {
-        $publicDir = $this->parameterBag->get('kernel.project_dir').'/public/bundles/fmelfinder';
+        $rootDir = $this->parameterBag->get('kernel.project_dir');
+        $publicDir = $rootDir.'/public/bundles/fmelfinder';
 
-        $this->fileSystem->mirror(self::ELFINDER_CSS_DIR, $publicDir.'/css');
-        $this->fileSystem->mirror(self::ELFINDER_IMG_DIR, $publicDir.'/img');
-        $this->fileSystem->mirror(self::ELFINDER_JS_DIR, $publicDir.'/js');
-        $this->fileSystem->mirror(self::ELFINDER_SOUNDS_DIR, $publicDir.'/sounds');
+        $this->fileSystem->mirror($rootDir . '/' . self::ELFINDER_CSS_DIR, $publicDir.'/css');
+        $this->fileSystem->mirror($rootDir . '/' . self::ELFINDER_IMG_DIR, $publicDir.'/img');
+        $this->fileSystem->mirror($rootDir . '/' . self::ELFINDER_JS_DIR, $publicDir.'/js');
+        $this->fileSystem->mirror($rootDir . '/' . self::ELFINDER_SOUNDS_DIR, $publicDir.'/sounds');
 
         $output->writeln('elFinder assets successfully installed');