diff --git a/colab/accounts/migrations/0004_auto_20150311_1818.py b/colab/accounts/migrations/0004_auto_20150311_1818.py
new file mode 100644
index 0000000..d69f6e4
--- /dev/null
+++ b/colab/accounts/migrations/0004_auto_20150311_1818.py
@@ -0,0 +1,50 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+def trim_fields(apps, schema_editor):
+    trim_extra_account(apps, schema_editor, "facebook")
+    trim_extra_account(apps, schema_editor, "github")
+    trim_extra_account(apps, schema_editor, "twitter")
+
+def trim_extra_account(apps, schema_editor, types):
+    Users = apps.get_model('accounts', 'User')
+    for user in Users.objects.all():
+        field = getattr(user, types)
+        if not field:
+            continue
+        tmpString = field.split("/")[-1]
+        if len(field) >= 15:
+            setattr(user, types, tmpString[:14])
+            user.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounts', '0003_auto_20141218_1755'),
+    ]
+
+    operations = [
+        migrations.RunPython(trim_fields),
+        migrations.AlterField(
+            model_name='user',
+            name='facebook',
+            field=models.CharField(max_length=15, null=True, blank=True),
+            preserve_default=True,
+        ),
+
+        migrations.AlterField(
+            model_name='user',
+            name='github',
+            field=models.CharField(max_length=39, null=True, verbose_name='github', blank=True),
+            preserve_default=True,
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='twitter',
+            field=models.CharField(max_length=15, null=True, blank=True),
+            preserve_default=True,
+        ),
+    ]
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