diff --git a/webapp/migrations/0007_auto_20170607_1815.py b/webapp/migrations/0007_auto_20170607_1815.py
index 359da53..71660fd 100644
--- a/webapp/migrations/0007_auto_20170607_1815.py
+++ b/webapp/migrations/0007_auto_20170607_1815.py
@@ -30,7 +30,7 @@ class Migration(migrations.Migration):
         migrations.CreateModel(
             name='Tag',
             fields=[
-                ('slug', models.SlugField(serialize=False)),
+                ('slug', models.SlugField(primary_key=True, serialize=False)),
                 ('name', models.CharField(max_length=127)),
                 ('icon', models.ImageField(upload_to='')),
             ],