diff --git a/problem_builder/migrations/0003_auto_20161116_0730.py b/problem_builder/migrations/0003_auto_20161116_0730.py
deleted file mode 100644
index d10dee6f..00000000
--- a/problem_builder/migrations/0003_auto_20161116_0730.py
+++ /dev/null
@@ -1,19 +0,0 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('problem_builder', '0002_auto_20160121_1525'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='answer',
-            name='course_id',
-            field=models.CharField(max_length=255, db_index=True),
-        ),
-    ]
diff --git a/problem_builder/models.py b/problem_builder/models.py
index abc47768..5afc3df7 100644
--- a/problem_builder/models.py
+++ b/problem_builder/models.py
@@ -39,7 +39,7 @@ class Meta:
 
     name = models.CharField(max_length=50, db_index=True)
     student_id = models.CharField(max_length=32, db_index=True)
-    course_id = models.CharField(max_length=255, db_index=True)
+    course_id = models.CharField(max_length=50, db_index=True)
     student_input = models.TextField(blank=True, default='')
     created_on = models.DateTimeField('created on', auto_now_add=True)
     modified_on = models.DateTimeField('modified on', auto_now=True)