diff --git a/src/pretix/control/forms/vouchers.py b/src/pretix/control/forms/vouchers.py
index 95cdefd39..0baeab2ce 100644
--- a/src/pretix/control/forms/vouchers.py
+++ b/src/pretix/control/forms/vouchers.py
@@ -398,7 +398,7 @@ class VoucherBulkForm(VoucherForm):
                 if len(c) < 5:
                     raise ValidationError({
                         'codes': [
-                            _('The voucher code {code} ist too short. Make sure all voucher codes are at least {min_length} characters long.').format(
+                            _('The voucher code {code} is too short. Make sure all voucher codes are at least {min_length} characters long.').format(
                                 code=c,
                                 min_length=5
                             )