diff --git a/netbox/users/forms/model_forms.py b/netbox/users/forms/model_forms.py
index 11874e929..d759dd2ac 100644
--- a/netbox/users/forms/model_forms.py
+++ b/netbox/users/forms/model_forms.py
@@ -186,8 +186,7 @@ class UserForm(forms.ModelForm):
     object_permissions = DynamicModelMultipleChoiceField(
         required=False,
         label=_('Permissions'),
-        queryset=ObjectPermission.objects.all(),
-        to_field_name='pk',
+        queryset=ObjectPermission.objects.all()
     )
 
     fieldsets = (
@@ -244,8 +243,7 @@ class GroupForm(forms.ModelForm):
     object_permissions = DynamicModelMultipleChoiceField(
         required=False,
         label=_('Permissions'),
-        queryset=ObjectPermission.objects.all(),
-        to_field_name='pk',
+        queryset=ObjectPermission.objects.all()
     )
 
     fieldsets = (
diff --git a/netbox/utilities/forms/fields/dynamic.py b/netbox/utilities/forms/fields/dynamic.py
index 00a1f823e..797ee865c 100644
--- a/netbox/utilities/forms/fields/dynamic.py
+++ b/netbox/utilities/forms/fields/dynamic.py
@@ -92,9 +92,6 @@ class DynamicModelChoiceMixin:
         self.fetch_trigger = fetch_trigger
         self.selector = selector
 
-        # to_field_name is set by ModelChoiceField.__init__(), but we need to set it early for reference
-        # by widget_attrs()
-        self.to_field_name = kwargs.get('to_field_name')
         self.empty_option = empty_label or ""
 
         super().__init__(queryset, **kwargs)
@@ -104,10 +101,6 @@ class DynamicModelChoiceMixin:
             'data-empty-option': self.empty_option
         }
 
-        # Set value-field attribute if the field specifies to_field_name
-        if self.to_field_name:
-            attrs['value-field'] = self.to_field_name
-
         # Set the string used to represent a null option
         if self.null_option is not None:
             attrs['data-null-option'] = self.null_option