diff --git a/tinywiki/utils.py b/tinywiki/utils.py
index 7ea44a6..e422207 100644
--- a/tinywiki/utils.py
+++ b/tinywiki/utils.py
@@ -143,8 +143,8 @@ def import_builtin_pages_from_zip(zip: str | Path, user=None):
             return True
         except BuiltinPages.DoesNotExist:
             for slug, spec in data['pages'].items():
-                with zf.open(spec['file'], "rt", encoding="utf-8") as ifile:
-                    content = ifile.read()
+                with zf.open(spec['file']) as ifile:
+                    content = ifile.read().decode("utf-8")
 
                 Page.objects.create(slug=slug,
                                     title=spec['title'],