diff --git a/ippisite/ippidb/migrations/0003_auto_20180726_1755.py b/ippisite/ippidb/migrations/0003_auto_20180726_1755.py
new file mode 100644
index 0000000000000000000000000000000000000000..ae85563ae0c67989aefe28250d914d6c7c426167
--- /dev/null
+++ b/ippisite/ippidb/migrations/0003_auto_20180726_1755.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11 on 2018-07-26 17:55
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('ippidb', '0002_auto_20180725_1805'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='mddractivityclass',
+            name='name',
+            field=models.TextField(max_length=100, unique=True, verbose_name='Activity Class'),
+        ),
+    ]
diff --git a/ippisite/ippidb/models.py b/ippisite/ippidb/models.py
index 0f9ca6f8e08247c2ec422f9a9370e8590bd23a1f..8d4c4aaadd9a10cf101330d2dd641da3b424b2c0 100644
--- a/ippisite/ippidb/models.py
+++ b/ippisite/ippidb/models.py
@@ -507,7 +507,7 @@ class LeLleBiplotData(models.Model):
 
 
 class MDDRActivityClass(models.Model):
-    name = models.CharField('Activity Class', max_length=100, unique=True)
+    name = models.TextField('Activity Class', max_length=100, unique=True)
 
     class Meta:
         verbose_name_plural = "MDDR activity classes"