diff --git a/sapl/materia/migrations/0008_auto_20170622_1527.py b/sapl/materia/migrations/0008_auto_20170622_1527.py
new file mode 100644
index 000000000..089d385c8
--- /dev/null
+++ b/sapl/materia/migrations/0008_auto_20170622_1527.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.11 on 2017-06-22 15:27
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('materia', '0007_auto_20170620_1252'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='acompanhamentomateria',
+            name='materia',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='materia.MateriaLegislativa'),
+        ),
+    ]
diff --git a/sapl/materia/models.py b/sapl/materia/models.py
index f6d9ab619..ec17e1ded 100644
--- a/sapl/materia/models.py
+++ b/sapl/materia/models.py
@@ -303,7 +303,7 @@ class Autoria(models.Model):
 @reversion.register()
 class AcompanhamentoMateria(models.Model):
     usuario = models.CharField(max_length=50)
-    materia = models.ForeignKey(MateriaLegislativa, on_delete=models.PROTECT)
+    materia = models.ForeignKey(MateriaLegislativa)
     email = models.EmailField(
         max_length=100, verbose_name=_('E-mail'))
     data_cadastro = models.DateField(auto_now_add=True)