diff --git a/lib/Alchemy/Phrasea/Command/NetworkProxiesTestCommand.php b/lib/Alchemy/Phrasea/Command/NetworkProxiesTestCommand.php
index 32272dae27..d9a9624db9 100644
--- a/lib/Alchemy/Phrasea/Command/NetworkProxiesTestCommand.php
+++ b/lib/Alchemy/Phrasea/Command/NetworkProxiesTestCommand.php
@@ -35,13 +35,12 @@ class NetworkProxiesTestCommand extends Command
         // test http-proxy
         if ($proxyConfig->getHttpProxyConfiguration() != null) {
             $httpProxy = $proxyConfig->getHttpProxyConfiguration();
-            array_merge($clientOptions, ['proxy' => $httpProxy]);
+            $clientOptions = array_merge($clientOptions, ['proxy' => $httpProxy]);
 
             $client = new Client($clientOptions);
 
             try {
                 $response = $client->get($urlTest);
-
                 $output->writeln("<info>Test outgoing connection with proxy " . $httpProxy ." success with status code : " . $response->getStatusCode() . " </info>");
             } catch(\Exception $e) {
                 $output->writeln("<comment>Outgoing connection error with proxy " . $httpProxy . " , " . $e->getMessage() . "</comment>");
diff --git a/lib/Alchemy/Phrasea/WorkerManager/Worker/AssetsIngestWorker.php b/lib/Alchemy/Phrasea/WorkerManager/Worker/AssetsIngestWorker.php
index fa45c16676..efa2761bcc 100644
--- a/lib/Alchemy/Phrasea/WorkerManager/Worker/AssetsIngestWorker.php
+++ b/lib/Alchemy/Phrasea/WorkerManager/Worker/AssetsIngestWorker.php
@@ -44,7 +44,7 @@ class AssetsIngestWorker implements WorkerInterface
 
         // add proxy in each request if defined in configuration
         if ($proxyConfig->getHttpProxyConfiguration() != null) {
-            array_merge($clientOptions, ['proxy' => $proxyConfig->getHttpProxyConfiguration()]);
+            $clientOptions = array_merge($clientOptions, ['proxy' => $proxyConfig->getHttpProxyConfiguration()]);
         }
 
         $uploaderClient = new Client($clientOptions);
diff --git a/lib/Alchemy/Phrasea/WorkerManager/Worker/CreateRecordWorker.php b/lib/Alchemy/Phrasea/WorkerManager/Worker/CreateRecordWorker.php
index b973175af6..fc3bddafd1 100644
--- a/lib/Alchemy/Phrasea/WorkerManager/Worker/CreateRecordWorker.php
+++ b/lib/Alchemy/Phrasea/WorkerManager/Worker/CreateRecordWorker.php
@@ -64,7 +64,7 @@ class CreateRecordWorker implements WorkerInterface
 
         // add proxy in each request if defined in configuration
         if ($proxyConfig->getHttpProxyConfiguration() != null) {
-            array_merge($clientOptions, ['proxy' => $proxyConfig->getHttpProxyConfiguration()]);
+            $clientOptions = array_merge($clientOptions, ['proxy' => $proxyConfig->getHttpProxyConfiguration()]);
         }
 
         $uploaderClient = new Client($clientOptions);
@@ -96,7 +96,7 @@ class CreateRecordWorker implements WorkerInterface
         $clientOptions = [];
         // add proxy in each request if defined in configuration
         if ($proxyConfig->getHttpProxyConfiguration() != null) {
-            array_merge($clientOptions, ['proxy' => $proxyConfig->getHttpProxyConfiguration()]);
+            $clientOptions = array_merge($clientOptions, ['proxy' => $proxyConfig->getHttpProxyConfiguration()]);
         }
 
         //download the asset