diff --git a/home/migrations/0007_alter_professoralias_alias.py b/home/migrations/0007_alter_professoralias_alias.py
new file mode 100644
index 00000000..ede12213
--- /dev/null
+++ b/home/migrations/0007_alter_professoralias_alias.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.4 on 2023-01-30 20:21
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('home', '0006_delete_auditlog'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='professoralias',
+            name='alias',
+            field=models.CharField(max_length=100, unique=True),
+        ),
+    ]
diff --git a/home/models.py b/home/models.py
index f1c99c0a..129e42af 100644
--- a/home/models.py
+++ b/home/models.py
@@ -287,7 +287,7 @@ class ProfessorAlias(Model):
     class Meta:
         db_table = "home_professor_alias"
 
-    alias = CharField(max_length=100)
+    alias = CharField(max_length=100, unique=True)
     professor = ForeignKey(Professor, CASCADE)