diff --git a/src/Service/FileUploader.php b/src/Service/FileUploader.php
index c33fb672..d202ee68 100644
--- a/src/Service/FileUploader.php
+++ b/src/Service/FileUploader.php
@@ -15,7 +15,11 @@ class FileUploader
 
     public function upload(UploadedFile $file)
     {
-        $filename = md5(uniqid()) . '.' . $file->guessExtension();
+        do 
+        {
+            $filename = md5(uniqid()) . '.' . $file->guessExtension();
+        }
+        while(file_exists($this->getTargetDir() . '/' . $filename));
 
         $file->move($this->getTargetDir(), $filename);