diff --git a/longs/admin.py b/longs/admin.py
index 91f8d97a..3e928e52 100755
--- a/longs/admin.py
+++ b/longs/admin.py
@@ -44,6 +44,7 @@ class LongAdminForm(ModelForm):
             "history",
             "sign",
             "feedback",
+            "mark_scheme",
             "model_observations",
             "model_interpretation",
             "model_principle_diagnosis",