diff --git a/src/pretix/control/forms/waitinglist.py b/src/pretix/control/forms/waitinglist.py
index ee395c2474..6fc7454e3e 100644
--- a/src/pretix/control/forms/waitinglist.py
+++ b/src/pretix/control/forms/waitinglist.py
@@ -140,5 +140,8 @@ class WaitingListEntryEditForm(I18nModelForm):
         field_classes = {
             'subevent': SafeModelChoiceField,
             'email': EmailField,
+            'phone': PhoneNumberField,
+        }
+        widgets = {
             'phone': WrappedPhoneNumberPrefixWidget,
         }