diff --git a/sigi/apps/casas/admin.py b/sigi/apps/casas/admin.py
index 48615f0..19b67f8 100644
--- a/sigi/apps/casas/admin.py
+++ b/sigi/apps/casas/admin.py
@@ -307,7 +307,7 @@ class ConvenioFilter(admin.SimpleListFilter):
 
 class ExcluirConvenioFilter(admin.SimpleListFilter):
     title=_(u"Excluir convênio da pesquisa")
-    parameter_name = 'convenio_excluir'
+    parameter_name = 'excluir_convenio'
 
     def lookups(self, request, model_admin):
         return tuple([(p.pk, p.sigla) for p in Projeto.objects.all()])