diff --git a/longs/forms.py b/longs/forms.py
index 13bd2052..8a94dca2 100755
--- a/longs/forms.py
+++ b/longs/forms.py
@@ -19,6 +19,8 @@ from longs.models import (
     Exam,
 )
 
+from anatomy.models import Modality
+
 from generic.models import Examination, Condition, Sign
 #from generic.models import Examination, Site, Condition, Sign
 
@@ -66,6 +68,11 @@ class LongSeriesForm(ModelForm):
             widget=FilteredSelectMultiple(verbose_name="Examination", is_stacked=False),
         )
 
+        self.fields["modality"] = ModelChoiceField(
+            required=True,
+            queryset=Modality.objects.all(),
+        )
+
     class Meta:
         model = LongSeries
         exclude = []