diff --git a/python/Symmetric_Site.py b/python/Symmetric_Site.py
index 6965e5d..c8e57e8 100644
--- a/python/Symmetric_Site.py
+++ b/python/Symmetric_Site.py
@@ -259,7 +259,7 @@ def _make_symmetric_sites(self, base_site, Ntheta):
         site_list = [base_site]
         for site_number in range(1, self.symmetry):
             site_name = base_site.name + '_' + str(site_number + 1)
-            new_site = Site(site_name, base_site.leaflet, base_site.temperature)
+            new_site = Site(site_name, base_site.leaflet_id, base_site.temperature)
             new_site.bin_coords = self._rotate_bin_coords(base_site.bin_coords, Ntheta, site_number)
             site_list.append(new_site)
         return site_list