diff --git a/src/Actions/ManagesServers.php b/src/Actions/ManagesServers.php
index a2232d8..bf27caa 100644
--- a/src/Actions/ManagesServers.php
+++ b/src/Actions/ManagesServers.php
@@ -35,12 +35,12 @@ public function server(int $serverId, array $includes = ['allocations'])
     /**
      * Get a server instance by external id.
      *
-     * @param int   $externalId
-     * @param array $includes
+     * @param string $externalId
+     * @param array  $includes
      *
      * @return Server
      */
-    public function serverEx(int $externalId, array $includes = ['allocations'])
+    public function serverEx(string $externalId, array $includes = ['allocations'])
     {
         return $this->get("api/application/servers/external/$externalId".$this->include($includes));
     }
diff --git a/src/Resources/Egg.php b/src/Resources/Egg.php
index 6af89e6..13cfb83 100644
--- a/src/Resources/Egg.php
+++ b/src/Resources/Egg.php
@@ -44,7 +44,7 @@ class Egg extends Resource
      *
      * @var string
      */
-    public $docker_image;
+    public $dockerImage;
 
     /**
      * The config of the egg.