diff --git a/gns3server/handlers/api/compute/project_handler.py b/gns3server/handlers/api/compute/project_handler.py
index d64f96c7..78e1f6b6 100644
--- a/gns3server/handlers/api/compute/project_handler.py
+++ b/gns3server/handlers/api/compute/project_handler.py
@@ -384,7 +384,8 @@ class ProjectHandler:
         response.content_length = None
         response.start(request)
 
-        for data in project.export(include_images=bool(request.GET.get("include_images", "0"))):
+        include_images = bool(int(request.json.get("include_images", "0")))
+        for data in project.export(include_images=include_images):
             response.write(data)
             yield from response.drain()
 
diff --git a/gns3server/utils/images.py b/gns3server/utils/images.py
index 6370499b..3c3733a4 100644
--- a/gns3server/utils/images.py
+++ b/gns3server/utils/images.py
@@ -91,7 +91,8 @@ def md5sum(path):
     try:
         with open(path + '.md5sum') as f:
             return f.read()
-    except OSError:
+    # Unicode error is when user rename an image to .md5sum ....
+    except (OSError, UnicodeDecodeError):
         pass
 
     try:
diff --git a/gns3server/web/route.py b/gns3server/web/route.py
index 5912e8f9..e956ed59 100644
--- a/gns3server/web/route.py
+++ b/gns3server/web/route.py
@@ -17,12 +17,14 @@
 
 import sys
 import json
-import jsonschema
+import urllib
 import asyncio
 import aiohttp
 import logging
 import urllib
 import traceback
+import jsonschema
+
 
 log = logging.getLogger(__name__)