diff --git a/core/views/expo.py b/core/views/expo.py
index 5844445..53ffada 100644
--- a/core/views/expo.py
+++ b/core/views/expo.py
@@ -123,7 +123,8 @@ def expofilesdir(request, dirpath, filepath):
 def expowebpage(request, expowebpath, path):
     '''Adds menus and serves an HTML page
     '''
-    if not os.path.is_file(os.path.normpath(expowebpath / path).encode(sysdefaultencoding)):
+    p = path.encode(sysdefaultencoding)
+    if not Path(expowebpath / p).is_file():
         # Should not get here if the path has suffix "_edit"
         print(f' - 404 error in expowebpage() {path}')
         return render(request, 'pagenotfound.html', {'path': path}, status="404")