diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 53a1347..7912b84 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -12,7 +12,6 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        
         $tb = new TreeBuilder('enqueue_elastica');
         if (method_exists($tb, 'getRootNode')) {
             $rootNode = $tb->getRootNode();
diff --git a/Queue/PopulateProcessor.php b/Queue/PopulateProcessor.php
index 3951a6c..dd2e4df 100644
--- a/Queue/PopulateProcessor.php
+++ b/Queue/PopulateProcessor.php
@@ -102,7 +102,7 @@ public static function getSubscribedCommand(): array
         return [
             'command' => Commands::POPULATE,
             'queue' => Commands::POPULATE,
-            'prefix_queue' => false,
+            'prefix_queue' => true,
             'exclusive' => true,
         ];
     }
diff --git a/composer.json b/composer.json
index 7391d3d..3fd54c7 100644
--- a/composer.json
+++ b/composer.json
@@ -7,7 +7,7 @@
     "require": {
         "php": "^7.1",
         "symfony/framework-bundle": "^3.4|^4",
-        "friendsofsymfony/elastica-bundle": "^5",
+        "friendsofsymfony/elastica-bundle": "6.0.0-beta5",
         "enqueue/enqueue-bundle": "^0.9"
     },
     "autoload": {