diff --git a/rattail_corepos/importing/corepos/api.py b/rattail_corepos/importing/corepos/api.py
index 29e1ec7..ea54eab 100644
--- a/rattail_corepos/importing/corepos/api.py
+++ b/rattail_corepos/importing/corepos/api.py
@@ -125,7 +125,7 @@ class CustomerImporter(FromCOREPOSAPI, importing.model.CustomerImporter):
 
         return {
             'id': customer['customerAccountID'],
-            'number': int(customer['cardNo']),
+            'number': customer['cardNo'],
             'name': normalize_full_name(person['firstName'],
                                         person['lastName']),
             'first_name': person['firstName'],