diff --git a/core/admin.py b/core/admin.py
index 505d52f4..9a727cd1 100644
--- a/core/admin.py
+++ b/core/admin.py
@@ -42,15 +42,17 @@ class RelatedAutocompleteFilter(FieldListFilter):
     limit = 10
 
     def __init__(self, field, request, params, model, model_admin, field_path):
+        super().__init__(field, request, params, model, model_admin, field_path)
+
         self.lookup_kwarg = f"{field_path}__{field.target_field.name}__exact"
         self.lookup_val   = params.get(self.lookup_kwarg, "")
 
-        remote = field.remote_field.model._meta
+        remote_opts = field.remote_field.model._meta
         base_url = reverse("admin:autocomplete")
         self.autocomplete_url = (
             f"{base_url}"
-            f"?app_label={remote.app_label}"
-            f"&model_name={remote.model_name}"
+            f"?app_label={remote_opts.app_label}"
+            f"&model_name={remote_opts.model_name}"
             f"&field_name={field.name}"
             f"&limit={self.limit}"
         )
@@ -63,12 +65,13 @@ class RelatedAutocompleteFilter(FieldListFilter):
 
     def choices(self, changelist):
         yield {
-            "selected":   bool(self.lookup_val),
-            "query_string": changelist.get_query_string(
-                ({self.lookup_kwarg: self.lookup_val} if self.lookup_val else {}),
-                []
-            ),
-            "display": _("—"),
+            "selected":      bool(self.lookup_val),
+            "query_string":  changelist.get_query_string(
+                                 ({self.lookup_kwarg: self.lookup_val}
+                                  if self.lookup_val else {}),
+                                 []
+                             ),
+            "display":       _("—"),
             "autocomplete_url": self.autocomplete_url,
             "lookup_kwarg":     self.lookup_kwarg,
             "lookup_val":       self.lookup_val,