diff --git a/core/lib/Thelia/Command/Install.php b/core/lib/Thelia/Command/Install.php
index 9d4d4d1fd..53a573375 100755
--- a/core/lib/Thelia/Command/Install.php
+++ b/core/lib/Thelia/Command/Install.php
@@ -272,6 +272,10 @@ class Install extends ContainerAwareCommand
     protected function tryConnection($connectionInfo, OutputInterface $output)
     {
 
+        if (is_null($connectionInfo["dbName"])) {
+            return false;
+        }
+
         $dsn = "mysql:host=%s";
 
         try {