diff --git a/generic/forms.py b/generic/forms.py
index 0fd89d8d..d59de903 100755
--- a/generic/forms.py
+++ b/generic/forms.py
@@ -121,7 +121,7 @@ class CidUserForm(ModelForm):
         def save_m2m():
             old_save_m2m()
             instance.physics_exam.clear()
-            for case in self.cleaned_data["physics_exam"]:
+            for physics_exam in self.cleaned_data["physics_exam"]:
                 # We need the id here
                 instance.physics_exam.add(physics_exam.pk)