diff --git a/gns3server/modules/project.py b/gns3server/modules/project.py
index eae93127..2f1e5644 100644
--- a/gns3server/modules/project.py
+++ b/gns3server/modules/project.py
@@ -528,7 +528,7 @@ class Project:
         :returns: ZipStream object
         """
 
-        z = zipstream.ZipFile()
+        z = zipstream.ZipFile(allowZip64=True)
         # topdown allo to modify the list of directory in order to ignore
         # directory
         for root, dirs, files in os.walk(self._path, topdown=True):