diff --git a/sigi/apps/casas/admin.py b/sigi/apps/casas/admin.py
index 570f563..60afc82 100644
--- a/sigi/apps/casas/admin.py
+++ b/sigi/apps/casas/admin.py
@@ -25,7 +25,6 @@ from sigi.apps.servicos.models import Servico
 from sigi.apps.servicos.filters import ServicoAtivoFilter
 from sigi.apps.servidores.models import Servidor
 from sigi.apps.utils import asciify_q_param
-from sigi.apps.utils.filters import EmptyFilter
 from sigi.apps.utils.mixins import (
     ReturnMixin,
     CartExportReportMixin,
@@ -364,7 +363,7 @@ class OrgaoAdmin(CartExportReportMixin, admin.ModelAdmin):
         ("convenio__projeto_id", ExcluirTipoProjetoFilter),
         ServicoFilter,
         "inclusao_digital",
-        ("email", EmptyFilter),
+        ("email", admin.EmptyFieldListFilter),
     )
     ordering = ("municipio__uf__nome", "nome")
     fieldsets = (
diff --git a/sigi/apps/eventos/admin.py b/sigi/apps/eventos/admin.py
index e9ef123..cf0e29a 100644
--- a/sigi/apps/eventos/admin.py
+++ b/sigi/apps/eventos/admin.py
@@ -39,7 +39,7 @@ from sigi.apps.eventos.models import (
 )
 from sigi.apps.eventos.forms import EventoAdminForm, SelecionaModeloForm
 from sigi.apps.utils import abreviatura
-from sigi.apps.utils.filters import EmptyFilter, DateRangeFilter
+from sigi.apps.utils.filters import DateRangeFilter
 from sigi.apps.utils.mixins import (
     CartExportMixin,
     LabeledResourse,
@@ -708,7 +708,7 @@ class EventoAdmin(CartExportMixin, admin.ModelAdmin):
     list_filter = (
         "status",
         "publicar",
-        ("num_processo", EmptyFilter),
+        ("num_processo", admin.EmptyFieldListFilter),
         "tipo_evento",
         "tipo_evento__categoria",
         "casa_anfitria__municipio__uf",
@@ -716,6 +716,7 @@ class EventoAdmin(CartExportMixin, admin.ModelAdmin):
         ("data_inicio", DateRangeFilter),
         "virtual",
         "solicitante",
+        ("moodle_courseid", admin.EmptyFieldListFilter),
     )
     date_hierarchy = "data_inicio"
     autocomplete_fields = (
diff --git a/sigi/apps/utils/filters.py b/sigi/apps/utils/filters.py
index 05efbb1..1a20d50 100644
--- a/sigi/apps/utils/filters.py
+++ b/sigi/apps/utils/filters.py
@@ -32,77 +32,6 @@ class AlphabeticFilter(admin.SimpleListFilter):
             )
 
 
-class EmptyFilter(admin.FieldListFilter):
-    EMPTY_STRING = _("Em branco")
-    NOT_EMPTY_STRING = _("Preenchido")
-
-    def __init__(self, field, request, params, model, model_admin, field_path):
-        self.model = model
-        self.model_admin = model_admin
-        self.parameter_name = f"{field_path}__empty"
-
-        if (not field.null) and (not field.blank):
-            raise NotEmptyableField(
-                f"Field {field.name} cannot be empty nor null"
-            )
-
-        super().__init__(
-            field, request, params, model, model_admin, field_path
-        )
-
-    def lookups(self):
-        return (
-            ("1", self.EMPTY_STRING),
-            ("0", self.NOT_EMPTY_STRING),
-        )
-
-    def value(self):
-        return self.used_parameters.get(self.parameter_name)
-
-    def choices(self, changelist):
-        yield {
-            "selected": self.value() is None,
-            "query_string": changelist.get_query_string(
-                remove=[self.parameter_name]
-            ),
-            "display": _("All"),
-        }
-
-        for value, display in self.lookups():
-            yield {
-                "selected": self.value() == value,
-                "query_string": changelist.get_query_string(
-                    {self.parameter_name: value}
-                ),
-                "display": display,
-            }
-
-    def expected_parameters(self):
-        return [
-            self.parameter_name,
-        ]
-
-    def queryset(self, request, queryset):
-        val = self.value()
-
-        if val is None:
-            return queryset
-
-        val = bool(int(val))
-
-        filter = Q()
-
-        if self.field.null:
-            filter = filter | Q(**{f"{self.field_path}__isnull": val})
-        if self.field.blank:
-            if val:
-                filter = filter | Q(**{f"{self.field_path}__exact": ""})
-            else:
-                filter = filter | ~Q(**{f"{self.field_path}__exact": ""})
-
-        return queryset.filter(filter)
-
-
 class RangeFilter(admin.FieldListFilter):
     num_faixas = 4
     parameter_name = None