diff --git a/c3l_membership/views.py b/c3l_membership/views.py
--- a/c3l_membership/views.py
+++ b/c3l_membership/views.py
@@ -109,7 +109,7 @@ def index():
                 " ".join(
                     (
                         form.street.data,
-                        form.zip.data,
+                        form.postal.data,
                         form.city.data,
                         form.state.data,
                         form.country.data,