diff --git a/layerindex/migrations/0034_source_sha256sum.py b/layerindex/migrations/0034_source_sha256sum.py
new file mode 100644
index 0000000..2349297
--- /dev/null
+++ b/layerindex/migrations/0034_source_sha256sum.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.16 on 2019-04-01 03:20
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('layerindex', '0032_patchdisposition'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='source',
+            name='sha256sum',
+            field=models.CharField(blank=True, max_length=64),
+        ),
+    ]
diff --git a/layerindex/models.py b/layerindex/models.py
index 7c5f44c..2c6449f 100644
--- a/layerindex/models.py
+++ b/layerindex/models.py
@@ -524,6 +524,7 @@ class Recipe(models.Model):
 class Source(models.Model):
     recipe = models.ForeignKey(Recipe)
     url = models.CharField(max_length=255)
+    sha256sum = models.CharField(max_length=64, blank=True)
 
     def web_url(self):
         def drop_dotgit(url):