diff --git a/core/views/expo.py b/core/views/expo.py
index 07ea323..c57d5cf 100644
--- a/core/views/expo.py
+++ b/core/views/expo.py
@@ -325,7 +325,7 @@ def editexpopage(request, path):
             body = body.replace("\r", "")
             result = "%s<head%s>%s</head>%s<body%s>\n%s</body>%s" % (preheader, headerargs, head, postheader, bodyargs, body, postbody)
             
-            cwd = filepath.parent
+            cwd = Path(filepath).parent
             filename = filepath.name
             git = settings.GIT
             # GIT see also core/models/cave.py writetrogglefile()