diff --git a/protocoloadm/views.py b/protocoloadm/views.py
index 88f82d55f..d21ad69dd 100644
--- a/protocoloadm/views.py
+++ b/protocoloadm/views.py
@@ -755,7 +755,7 @@ class PesquisarDocumentoAdministrativo(TemplateView):
             kwargs['interessado'] = request.POST['interessado']
 
         if request.POST['assunto']:
-            kwargs['assunto'] = request.POST['assunto']
+            kwargs['assunto_ementa__icontains'] = request.POST['assunto']
 
         if request.POST['tramitacao']:
             if request.POST['tramitacao'] == 1: