diff --git a/disk/Googledrive.php b/disk/Googledrive.php
index 95f3e89..0a59198 100644
--- a/disk/Googledrive.php
+++ b/disk/Googledrive.php
@@ -768,6 +768,9 @@ class Googledrive {
         }
         return true;
     }
+    public function getDiskSpace() {
+        return '';
+    }
 
     protected function GDAPI($method, $url, $data = '')
     {