diff --git a/manager-bundle/src/Composer/ScriptHandler.php b/manager-bundle/src/Composer/ScriptHandler.php
index f1a87b51450..6a998e9f02a 100644
--- a/manager-bundle/src/Composer/ScriptHandler.php
+++ b/manager-bundle/src/Composer/ScriptHandler.php
@@ -92,7 +92,7 @@ static function (string $type, string $buffer) use ($event): void {
         );
 
         if (!$process->isSuccessful()) {
-            throw new \RuntimeException(sprintf('An error occurred while executing the "%s" command: %s', $cmd, $process->getErrorOutput()));
+            throw new \RuntimeException(sprintf('An error occurred while executing the "%s" command: %s', implode(' ', $cmd), $process->getErrorOutput()));
         }
     }