diff --git a/longs/migrations/0007_longseries_examination.py b/longs/migrations/0007_longseries_examination.py
new file mode 100644
index 00000000..5048b098
--- /dev/null
+++ b/longs/migrations/0007_longseries_examination.py
@@ -0,0 +1,20 @@
+# Generated by Django 3.1.3 on 2021-02-05 09:59
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('generic', '0001_initial'),
+        ('longs', '0006_auto_20210205_0958'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='longseries',
+            name='examination',
+            field=models.ForeignKey(help_text='Name of the examination', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='series_examination', to='generic.examination'),
+        ),
+    ]
diff --git a/longs/models.py b/longs/models.py
index e9c218e9..12b1f325 100644
--- a/longs/models.py
+++ b/longs/models.py
@@ -125,8 +125,8 @@ class LongSeriesImage(models.Model):
 
 class LongSeries(models.Model):
     modality = models.ForeignKey(Modality, related_name="series_modality", on_delete=models.SET_NULL, null=True)
-    #examination = models.ForeignKey(
-    #    Examination, help_text="Name of the examination", related_name="series_examination", on_delete=models.SET_NULL, null=True)
+    examination = models.ForeignKey(
+        Examination, help_text="Name of the examination", related_name="series_examination", on_delete=models.SET_NULL, null=True)
     long = models.ForeignKey("Long", related_name="series", on_delete=models.SET_NULL, null=True)
     description = models.TextField(blank=True, help_text="Description of stack, for admin organisation")